Re: Lakescape
- Original Message - From: SJ Subject: PESO: Lakescape hi, here's a photo from my motorcycle ride through the himalayas/ spiti/ ladakh last week. situated at about 14,500 ft., the Pangong Tso is a brackish water lake that is 135 kilometres long; one third of which is in india, the rest in china. when the sun is out, the changing shades of blue is a delight to watch. my take on the lake: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... Nothing to critique. I think it's a gorgeous picture. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K20D dynamic range question
2008/6/26 DagT [EMAIL PROTECTED]: The guy who was claiming this had a look at my K20D files and found lack of details in the same areas that had highlight warnings on the camera. He claims that his method works on K20D but I´m not convinced. Oh. I got it wrong from memory then... I thought it was your K10D files he'd looked at. But anyway it would be interesting to do some experiments with both K10D and K20D. I think also it might be worthwhile to repeat the post processing with at least two or three different raw converters. In my experience the exposure meter on K20D goes more to the right than K10D (and thus follows some of the recommendations in the mentioned thread) and it has a little better dynamic range in RAW. A very rough test based n the chimping method shows that the range between higlight and low light warnings on K20D was 10EV... Interesting observation. I'll try to follow your example first, and hopefully get down to some kind of quantification over the week-end. I will not bring a PC to Runde... :-) But re: dynamic range, I remember my own amazement when I realised how much more latitude I had with the *istD raw files, coming from slide film... :-) Jostein -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - DA* 300/4 sample shot
Thanks Bob. Ahh, you know... Resistance is... :-) Jostein 2008/6/26 Bob Sullivan [EMAIL PROTECTED]: Jostien, Yes, very neat! I love how sharp the tern is in the 1:1 crop. Please don't post any more DA*300/4 shots - too much enablement! ;-) Regards, Bob S. On Thu, Jun 26, 2008 at 8:54 AM, AlunFoto [EMAIL PROTECTED] wrote: This hunting tern was observed yesterday afternoon by the Eastern end of the Greenland Dock, Southwark Bourough, London. I think it is a good testimony both to the capability of the lens, and to the AF capability of the K20D. I had the AF set for auto-selection of sensor, because I had to keep full concentration on keeping the tern inside the frame. Out of about 20 shots with varying background (clouds, blue sky, foliage, and brick walls as here), only 2 are focused on the background. Pretty neat, eh? :-) http://www.alunfoto.no/galleri/displayimage.php?pos=-97 A crop (not 1:1) http://www.alunfoto.no/galleri/displayimage.php?pos=-98 Exposure: 1/1000s, f/5.6, ISO 200. Best, Jostein -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - DA* 300/4 sample shot
Hey Dave, I have some cheap glasses you can wear which will fix you some CA. They will probably cure your illusion of precise focusing too. Jostein 2008/6/26 David J Brooks [EMAIL PROTECTED]: Cool shot, but not enough CA for me.:-0 Dave -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - DA* 300/4 sample shot
2008/6/26 Bob W [EMAIL PROTECTED]: Nicely focused on the tern, and it really shows the beauty of these little birds. There are a lot of them about at the moment. I know they are summer visitors, but there seem to be more of them on the river this year than I've seen before. They distract me when I go jogging because I enjoy watching them holding their position in the breeze then plunging to the water. Bob Thanks Bob, That position-holding is what makes it possible to catch them within the frame at all, as far as my technique is concerned... :-) Jostein -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
Wonderful, Subash. I might just have to take a look at Digikam again. Cheers Brian ++ Brian Walters Western Sydney Australia http://members.westnet.com.au/brianwal/SL/ On Fri, 27 Jun 2008 09:42:29 +0530, SJ [EMAIL PROTECTED] said: hi, here's a photo from my motorcycle ride through the himalayas/ spiti/ ladakh last week. situated at about 14,500 ft., the Pangong Tso is a brackish water lake that is 135 kilometres long; one third of which is in india, the rest in china. when the sun is out, the changing shades of blue is a delight to watch. my take on the lake: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... regards, subash -- -- http://www.fastmail.fm - Accessible with your email software or over the web -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K20D dynamic range question (ISO range, SR x-sync)
There is ISO 100 and 6400 there. Don't forget that you select ISO range with two wheels; lower - with wheel on the cameras back and high ISO with wheel on cams front (or other way around). I too was confused with this after I chosen expanded ISO and EDR. At first was trying to find the settings in menu - custom settings but then realised it's under [Fn] now. What I'm really pleased of is that ISO 100-1000 is my default settings and noise is very well controlled. SR is slightly beyond my understanding. In exif it shows SR focal length: 188 for focal=200; looks as if it has several programmed SR steps and it only uses approximated (hardcoded) values although it works really well, so no complaints about this. I've one very disturbing thing about K20D - X-sync terminal (socket) is very lose and I always lose x-sync cable while rotating the camera. Almost every time I turn it right (portrait), x-sync plug slips out of the socket... I wonder if I can use hotshoe adapter I have instead of x-sync socket. My best wishes to you, Roman. -- K20D, DA10-17mm, DA16-45mm, FA50mm_f1.4, DA50-200mm, Dörr DStudio strobes roman.blakout.net http://roman.blakout.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On Fri, 27 Jun 2008 16:55:35 +1000 Brian Walters [EMAIL PROTECTED] wrote: Wonderful, Subash. I might just have to take a look at Digikam again. On Fri, 27 Jun 2008 09:42:29 +0530, SJ [EMAIL PROTECTED] said: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 thanks brian. if you are on linux, you really should give it a try. they've recently released 09.4-RC1 and i quite like it... regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Lakescape
On Fri, 27 Jun 2008 00:12:08 -0600 William Robb [EMAIL PROTECTED] wrote: - Original Message - From: SJ Subject: PESO: Lakescape http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 Nothing to critique. I think it's a gorgeous picture. hi bill, thanks. i really appreciate that...regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On 27/6/08, SJ, discombobulated, unleashed: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... The colour is lovely - but what a barren place - I'd miss he vegetation but I suppose this is a place to ride on through, not build a home :) -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
From: William Robb [EMAIL PROTECTED] Date: 2008/06/27 Fri AM 12:29:45 GMT To: Pentax-Discuss Mail List pdml@pdml.net Subject: Re: GIMP question - Original Message - From: Brian Walters Subject: Re: GIMP question Even though I use a lot of free and open source software, I have no problem with software developers getting a reasonable profit from their efforts. But when the cost of the software is about the same as the cost of the camera (as in CS3), I remain to be convinced that it's reasonable. Consider that those of us who buy the software are subsidising the 98% of the users who are stealing it. I believe that if that was anywhere near a realistic figure, even Adobe would have figured out that it was better business sense to reduce the price dramatically. - Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On Fri, 27 Jun 2008 09:10:14 +0100 Cotty [EMAIL PROTECTED] wrote: On 27/6/08, SJ, discombobulated, unleashed: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 The colour is lovely - but what a barren place - I'd miss he vegetation but I suppose this is a place to ride on through, not build a home :) hi cotty, thanks for looking. :-) actually it is not as barren as it looks though in many ways that is part of its beauty, if you will. though the lake is frozen over in winter, there are quite a few birds that make it their summer home apart from that this place is close to the now-defunt ancient silk route that went from china to persia through india, so people have lived here for centuries. one such village (called spangmik): http://picasaweb.google.com/pdml.live/Etc/photo#5216491038724547266 note the trees...:-)) and in this photo, the building on the left is actually an Indian government-run primary school and we found that it is being run exclusively for the two girls of school-going age in the village: http://picasaweb.google.com/pdml.live/Etc/photo#5216491048604388626 and, for your viewing pleasure, the teacher and the two students, in their full school uniform: http://picasaweb.google.com/pdml.live/Etc/photo#5216491053432703650 and, in all these three photos, because it was a very cloudy day, the lake (and the photos too) looks very different and flat. the place *is* home. :-)) regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
Thats lovely mate. Well done. Cheers, Dave 2008/6/27 SJ [EMAIL PROTECTED]: hi, here's a photo from my motorcycle ride through the himalayas/ spiti/ ladakh last week. situated at about 14,500 ft., the Pangong Tso is a brackish water lake that is 135 kilometres long; one third of which is in india, the rest in china. when the sun is out, the changing shades of blue is a delight to watch. my take on the lake: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
OT: For experts on American cars. What car?
Hi all, Summer greetings from the Aland Islands! Since I know that many PDML-members don't mind talking a little about cars in between the camera and photo discusssions - can anybody tell me make, model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Thanks, Lasse -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On Fri, 27 Jun 2008 17:49:50 +0800 David Savage [EMAIL PROTECTED] wrote: Thats lovely mate. Well done. http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 thanks dave, for the nice words. glad you like it... regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
Lasse, I would guess that this is a 1958 Cadillac limousine of some sort. That's based on the tail fin, and the chrome side trim. I don't think it is a regular production model. The back door, back side window, and roof line look like a longer car. Here is a picture of a similar 1958 Cadillac Sedan. http://www.misterw.com/Cadillac/58Cad4Dr04.html Regards, Bob S. On Fri, Jun 27, 2008 at 4:59 AM, Lasse Karlsson [EMAIL PROTECTED] wrote: Hi all, Summer greetings from the Aland Islands! Since I know that many PDML-members don't mind talking a little about cars in between the camera and photo discusssions - can anybody tell me make, model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Thanks, Lasse -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Peso Last day of.....
Thanks. It corners wonderfully Dave On Thu, Jun 26, 2008 at 1:56 PM, P. J. Alling [EMAIL PROTECTED] wrote: My that is a handsome bus, I like what you've done with it. David J Brooks wrote: School today.:-) http://www.flickr.com/photos/djbrooks/2613123279/ My bus in the driveway between last two runs. My feet are cut off. Liz took the shot. K10D, DA F 50 f2.8, LR adjust temp a bit and up lights. Dave (I have the summer off, well not really, i have lots of horse shows) Brooks -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Equine Photography www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ Ontario Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Peso Last day of.....
Thanks Christine. It will be a sort of summer off. I have every weekend booked till labor day for shows, so i'll stay busy and hopefully make an income.:-) Dave On Thu, Jun 26, 2008 at 2:04 PM, Christine Aguila [EMAIL PROTECTED] wrote: Looks good, Dave. Have a great summer off!!! Cheers, Christine - Original Message - From: David J Brooks [EMAIL PROTECTED] To: Pentax Discuss pdml@pdml.net; Harry Bolton [EMAIL PROTECTED]; Barb Brooks [EMAIL PROTECTED]; Sarah Bedford-James [EMAIL PROTECTED]; Yvette Sheppard [EMAIL PROTECTED] Sent: Thursday, June 26, 2008 12:55 PM Subject: Peso Last day of. School today.:-) http://www.flickr.com/photos/djbrooks/2613123279/ My bus in the driveway between last two runs. My feet are cut off. Liz took the shot. K10D, DA F 50 f2.8, LR adjust temp a bit and up lights. Dave (I have the summer off, well not really, i have lots of horse shows) Brooks -- Equine Photography www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ Ontario Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Equine Photography www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ Ontario Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Sensor resolution V focal length..........
I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: OT: For experts on American cars. What car?
Following up on Peter's knowledge, a Google image search found this: http://luxurycarphotos.tripod.com/58cadillacfleet75_pic3.jpg http://tinyurl.com/489zps It appears not to be a modification, but an original factory model, the Cadillac Fleetwood Series 75, which seemed to have a higher, squarer roofline than other Cadillac models. I'm sure when Paul Stenquist sees Lasse's photo he'll tell us the month it was built, the comp ratio of the engine and the colour of the upholstery :-) Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Sullivan Sent: Friday, 27 June 2008 8:31 PM To: Pentax-Discuss Mail List Subject: Re: OT: For experts on American cars. What car? Lasse, I would guess that this is a 1958 Cadillac limousine of some sort. That's based on the tail fin, and the chrome side trim. I don't think it is a regular production model. The back door, back side window, and roof line look like a longer car. Here is a picture of a similar 1958 Cadillac Sedan. http://www.misterw.com/Cadillac/58Cad4Dr04.html Regards, Bob S. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
Very good Dave, that's it! Popular here as a funeral car for the bereaved family. Regards, Bob S. On Fri, Jun 27, 2008 at 6:07 AM, Anthony Farr [EMAIL PROTECTED] wrote: Following up on Peter's knowledge, a Google image search found this: http://luxurycarphotos.tripod.com/58cadillacfleet75_pic3.jpg http://tinyurl.com/489zps It appears not to be a modification, but an original factory model, the Cadillac Fleetwood Series 75, which seemed to have a higher, squarer roofline than other Cadillac models. I'm sure when Paul Stenquist sees Lasse's photo he'll tell us the month it was built, the comp ratio of the engine and the colour of the upholstery :-) Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Sullivan Sent: Friday, 27 June 2008 8:31 PM To: Pentax-Discuss Mail List Subject: Re: OT: For experts on American cars. What car? Lasse, I would guess that this is a 1958 Cadillac limousine of some sort. That's based on the tail fin, and the chrome side trim. I don't think it is a regular production model. The back door, back side window, and roof line look like a longer car. Here is a picture of a similar 1958 Cadillac Sedan. http://www.misterw.com/Cadillac/58Cad4Dr04.html Regards, Bob S. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
GESO: A Girls' Folly
A little off my game last night. The Hopetoun lighting has always been a touch iffy, and the sound mix wasn't the best. But I still had a ball. http://members.iinet.net.au/~derbyc/08_06/08_06_girlsfolly/index.htm Sorry, didn't get any pix of the 2nd support. Was out the back on the smoko lounge with my friend, chatting. D -- [EMAIL PROTECTED] http://members.iinet.net.au/~derbyc -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
LOWER IMAGE RESOLUTION - DUE TO THE SHORTER LENS/SMALLER SENSOR. ANYTIME YOU REDUCE THE SENSOR SIZE AND USE SHORTER LENSES YOU REDUCE IMAGE RESOLUTION FOR A GIVEN LENS QUALITY. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, June 27, 2008 6:59 AM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
John, You are on the right track but it's a bit early (AM) to discuss this for my brain. The 100% crop from a 400mm will be bigger than the same photo with a 300mm. (Need geometry/trig to figure by how much exactly...) With the K20D vs the K10D, the 400mm will give you 14 megapixels instead of 10. So a 600 x 900 pixel 100% crop of 540,000 pixels on a K20D will show about the same area as 385,700 pixels on a K10D, or 507 x 761 pixel image. It looks like an 18% enlargement on the K20D. Regards, Bob S. On Fri, Jun 27, 2008 at 5:59 AM, John Wittingham [EMAIL PROTECTED] wrote: I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
OT: Interesting Creative Photos
http://haha.nu/creative/creative-photos-by-chema-madoz Enjoy. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
Thank you, Anthony! (And everybody else who replied.) It defnitely looks like you found it. I might add that the lady behind the car is Marilyn Monroe, probably stepping out of one of the 20th Century Fox studios, and I'm just trying to find a possible or approximate date for the shot. At first I was thinking it may have been one of her own cars, she owned and drove a few, but then I realized that it might just as well be one from a Limo service, which I know she/the studio used quite a lot. If anybody knows when this model it first hit the market you'll win a virtual Marilyn Monroe-badge. Thanks, Lasse - Original Message - From: Anthony Farr [EMAIL PROTECTED] To: 'Pentax-Discuss Mail List' pdml@pdml.net Sent: Friday, June 27, 2008 2:07 PM Subject: RE: OT: For experts on American cars. What car? Following up on Peter's knowledge, a Google image search found this: http://luxurycarphotos.tripod.com/58cadillacfleet75_pic3.jpg http://tinyurl.com/489zps It appears not to be a modification, but an original factory model, the Cadillac Fleetwood Series 75, which seemed to have a higher, squarer roofline than other Cadillac models. I'm sure when Paul Stenquist sees Lasse's photo he'll tell us the month it was built, the comp ratio of the engine and the colour of the upholstery :-) Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Sullivan Sent: Friday, 27 June 2008 8:31 PM To: Pentax-Discuss Mail List Subject: Re: OT: For experts on American cars. What car? Lasse, I would guess that this is a 1958 Cadillac limousine of some sort. That's based on the tail fin, and the chrome side trim. I don't think it is a regular production model. The back door, back side window, and roof line look like a longer car. Here is a picture of a similar 1958 Cadillac Sedan. http://www.misterw.com/Cadillac/58Cad4Dr04.html Regards, Bob S. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
It appears to be a 1957 Cadillac, probably an Eldorado. It might be a 1958, but without looking at reference, I'd bet on '57. The styling changed every year in those days and both the 1956 and 1959 models are very different. Paul Stenquist On Jun 27, 2008, at 5:59 AM, Lasse Karlsson wrote: Hi all, Summer greetings from the Aland Islands! Since I know that many PDML-members don't mind talking a little about cars in between the camera and photo discusssions - can anybody tell me make, model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Thanks, Lasse -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
Lasse Karlsson wrote: model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Sorry, Lasse, that one's before my time. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: OT: For experts on American cars. What car?
I have no idea what it is but based on styling I'd say its between '57 and '59 inclusive whatever it is. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Doug Franklin Sent: Friday, June 27, 2008 8:54 AM To: Pentax-Discuss Mail List Subject: Re: OT: For experts on American cars. What car? Lasse Karlsson wrote: model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Sorry, Lasse, that one's before my time. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
That is correct, there will be no resolution loss if you use a K20D with a shorter lens and crop down to the equivalent of the K10D with the longer lens. Sensor size does not determine resolution at all (unlike with film). Pixel density does. A 3000x2000 pixel sensor delivers the same resolution if it's 30x20mm as it does if its 30x20cm. This of course assumes that the lens is not limiting the resolution of the image. And of course that the AA filter on both is similar (AA filters reduce the detail resolution abilities of a sensor to prevent moire). The advantages of a larger sensor(more truly larger sensor sites at a given pixel count) are better noise performance, better dynamic range and shallower DoF effects. -Adam On Fri, Jun 27, 2008 at 8:18 AM, J. C. O'Connell [EMAIL PROTECTED] wrote: Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
Like it, Subash. A couple suggestions, if I may. A completely understandable tendency at this altitude, the sky is an unnaturally dark tone of blue to the point of being a minor distraction. Also, I believe I would place less of the roadway in the lower foreground, with the additional possible benefit of lowering the horizon a bit. Thanks for a pleasing look at a gorgeous part of the world. Jack --- On Thu, 6/26/08, SJ [EMAIL PROTECTED] wrote: From: SJ [EMAIL PROTECTED] Subject: PESO: Lakescape To: PDML pdml@pdml.net Date: Thursday, June 26, 2008, 9:12 PM hi, here's a photo from my motorcycle ride through the himalayas/ spiti/ ladakh last week. situated at about 14,500 ft., the Pangong Tso is a brackish water lake that is 135 kilometres long; one third of which is in india, the rest in china. when the sun is out, the changing shades of blue is a delight to watch. my take on the lake: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
YOUR This assumes is the problem, unless you have a infintely resolving lens - which of course doesnt exist, you will get a resolution loss when changing to a smaller sensor size and using a shorter lens of the same **real world** quality, based on todays state of the art sensors and lenses. The effective image resolution is a combination of lens resolution and sensor resolution, its not sensor resolution alone. And when you get down to it with APS sized sensors and smaller and with even top qualtiy lenses, which is the scope of this thread, LENS resolution is definately a still a MAJOR factor in image resolution. So I say no to this post, THERE WILL DEFINATELY be a loss in **image** resolution if you crop a 20D image and use shorter lenses, than an uncropped K10D image with a longer lens if both are matched to same AOV and equiv. even high quality lenses are used. if lower quality lenses are used the difference would be dramatically in favor of the K10D. None of this has anything to do with film. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Maas Sent: Friday, June 27, 2008 9:03 AM To: Pentax-Discuss Mail List Subject: Re: Sensor resolution V focal length.. That is correct, there will be no resolution loss if you use a K20D with a shorter lens and crop down to the equivalent of the K10D with the longer lens. Sensor size does not determine resolution at all (unlike with film). Pixel density does. A 3000x2000 pixel sensor delivers the same resolution if it's 30x20mm as it does if its 30x20cm. This of course assumes that the lens is not limiting the resolution of the image. And of course that the AA filter on both is similar (AA filters reduce the detail resolution abilities of a sensor to prevent moire). The advantages of a larger sensor(more truly larger sensor sites at a given pixel count) are better noise performance, better dynamic range and shallower DoF effects. -Adam On Fri, Jun 27, 2008 at 8:18 AM, J. C. O'Connell [EMAIL PROTECTED] wrote: Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML
Re: Finally a REVIEW :D
??? Since I'm one of the three spammers: I'm not an american and probably overlook the fine details of this joke. Please enlighten me in this grammatical pixel peeping. On Fri, Jun 27, 2008 at 3:24 AM, Jack Davis [EMAIL PROTECTED] wrote: Good one, Ken! Jack --- On Thu, 6/26/08, Ken Waller [EMAIL PROTECTED] wrote: From: Ken Waller [EMAIL PROTECTED] Subject: Re: Finally a REVIEW :D To: Pentax-Discuss Mail List pdml@pdml.net Date: Thursday, June 26, 2008, 3:30 PM No but they stayed at a Holiday Inn Express ! ;+} Kenneth Waller http://www.tinyurl.com/272u2f - Original Message - From: Cotty [EMAIL PROTECTED] Subject: Re: Finally a REVIEW :D On 26/6/08, Scott Loveless, discombobulated, unleashed: Did the three of you rent an apartment together, or what? ;) LOL -- Cheers, Cotty -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On 6/27/08, SJ [EMAIL PROTECTED] wrote: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 Beautiful. Absolutely beautiful. Have you posted the ride report on ADVrider yet? ;-) -Mat -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Finally a REVIEW :D
Holiday Inn Express was borrowed from a well worn TV commercial for a motel chain who's theme is about the added insights you gain by staying in their motels. Jack --- On Fri, 6/27/08, Toine [EMAIL PROTECTED] wrote: From: Toine [EMAIL PROTECTED] Subject: Re: Finally a REVIEW :D To: Pentax-Discuss Mail List pdml@pdml.net Date: Friday, June 27, 2008, 6:14 AM ??? Since I'm one of the three spammers: I'm not an american and probably overlook the fine details of this joke. Please enlighten me in this grammatical pixel peeping. On Fri, Jun 27, 2008 at 3:24 AM, Jack Davis [EMAIL PROTECTED] wrote: Good one, Ken! Jack --- On Thu, 6/26/08, Ken Waller [EMAIL PROTECTED] wrote: From: Ken Waller [EMAIL PROTECTED] Subject: Re: Finally a REVIEW :D To: Pentax-Discuss Mail List pdml@pdml.net Date: Thursday, June 26, 2008, 3:30 PM No but they stayed at a Holiday Inn Express ! ;+} Kenneth Waller http://www.tinyurl.com/272u2f - Original Message - From: Cotty [EMAIL PROTECTED] Subject: Re: Finally a REVIEW :D On 26/6/08, Scott Loveless, discombobulated, unleashed: Did the three of you rent an apartment together, or what? ;) LOL -- Cheers, Cotty -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: Interesting Creative Photos
Oh, Madoz's work...I am not generally a fan of 'prepared' pictures, but theirs are an exception. The problem is that it makes me feel like a boring and unimaginative photographer. Regards, Jaume - Mensaje original De: David Savage [EMAIL PROTECTED] Para: Pentax-Discuss Mail List PDML@pdml.net Enviado: viernes, 27 de junio, 2008 13:45:09 Asunto: OT: Interesting Creative Photos http://haha.nu/creative/creative-photos-by-chema-madoz Enjoy. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. __ Enviado desde Correo Yahoo! La bandeja de entrada más inteligente. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
JCO, You need to read what people write. I wrote that the REAL sensor dimensions are absolutely identical when they are uncropped. ...and the two cameras have equivalent sensor dimensions, were my exact words. They always will be and I never claimed anything different It's the pixel density that's different. All that John Wittingham proposed was to use a K20d and crop away the outer 4 Mpixels to ~effectively~ get a camera with equivalent resolution to a K10d but with a higher crop factor. At least that was my understanding of his musings. He'd be using his K20d as a 4/3 camera with a K-mount. It'd work but I would cost some image quality and give the DOF attributes of the smaller format (provided he cropped every time and never reverted to the entire frame). That said, I have a 4/3 camera and when I get a PK to 4/3 adapter I'll let you know how my M and A lenses perform ;-) Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of J. C. O'Connell Sent: Friday, 27 June 2008 10:18 PM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
If your crops were of the same dimension in pixels and the framing on the bird was the same, the K20D and 300 would yield a slightly larger print. Paul On Jun 27, 2008, at 9:15 AM, John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PEF vs DNG: The Battle for Hard Drive Space
In Israel you could buy a 500 GB hard drive for $120 or thereabouts. I am sure that in US of A the prices are even lower. I don't think that the labor and the time that you are going to spend and then the worry you're going to experience if anything for any reason goes wrong is not worth it. Boris John Celio wrote: So I've got a bajillion PEF files from over the years, and my photography hard drive is rapidly filling up (I can't imagine how fast it'll fill whenever I manage to upgrade to the K20D or its eventual replacement). I've been thinking about converting all my PEFs to compressed DNGs, but can't remember the various ups and downs I've read about in various threads here. So my question is, are there any reasons one should NOT convert PEFs to compressed DNGs? Thanks, John -- http://www.neovenator.com http://www.cafepress.com/neovenatorphoto -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO: Lakescape
Very nice :) I like the composition, colors etc.. that place must have been awesome to ride in. Did you use a graduated ND filter on that one though? Is that why the road becomes greenish around the middle? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of SJ Sent: 27 juin 2008 00:12 To: PDML Subject: PESO: Lakescape hi, here's a photo from my motorcycle ride through the himalayas/ spiti/ ladakh last week. situated at about 14,500 ft., the Pangong Tso is a brackish water lake that is 135 kilometres long; one third of which is in india, the rest in china. when the sun is out, the changing shades of blue is a delight to watch. my take on the lake: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
If the the resolution of the lenses (and all other optical qualities as well), were equal, and assuming that both lenses met or exceeded the resolution of the sensors. If you took a 10.2 megapixel 2:3 aspect ratio crop from the center of the 14.6MP image, you could make prints with roughly the same resolution from each. If you crop the 14.6MP sensor with a 300mm lens to the same AOV as the 10.2MP sensor with a 400mm lens you will have somewhat more resolution, (I'm not sure how much I haven't done the math in detail, just enough to know that an equivalent crop will contain more MP. John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
Thanks Paul, so in theory at least I could substitute pixels for the focal length I need to achieve the desired result. The DoF will be greater with the shorter lens but the resolution would also probably be better given the same quality of lens. Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Paul Stenquist [EMAIL PROTECTED] Sent: 27 June 2008 14:43 To: Pentax-Discuss Mail List Subject: Re: Sensor resolution V focal length.. If your crops were of the same dimension in pixels and the framing on the bird was the same, the K20D and 300 would yield a slightly larger print. Paul On Jun 27, 2008, at 9:15 AM, John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
John, Put the 400mm on the K20d and solve all your problems at once ;-) But seriously, no one can tell you what will be acceptable to you. You'll have to set your own standards based on your own experience. Just look at Toine's shots with his new to him 38 year old T-Novoflexar 400/5.6. They're cracking good and couldn't have been better even if he had a brand new lens worth 10 or 20 times more. If you crop your shots, don't sweat it and don't tell us that you cropped. If they're good we'll tell you as much. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 11:16 PM To: Pentax-Discuss Mail List Subject: RE: Sensor resolution V focal length.. Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On Fri, 27 Jun 2008 06:07:43 -0700 (PDT) Jack Davis [EMAIL PROTECTED] wrote: Like it, Subash. A couple suggestions, if I may. A completely understandable tendency at this altitude, the sky is an unnaturally dark tone of blue to the point of being a minor distraction. Also, I believe I would place less of the roadway in the lower foreground, with the additional possible benefit of lowering the horizon a bit. Thanks for a pleasing look at a gorgeous part of the world. thank you, Jack for taking a look and the suggestions. i guess the CPL makes the sky's blue pop out a little but the sky *was* more or less like that...i'll work with different crops to see if i can get a better perspective. regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On Fri, 27 Jun 2008 09:15:36 -0400 Mat Maessen [EMAIL PROTECTED] wrote: On 6/27/08, SJ [EMAIL PROTECTED] wrote: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 Beautiful. Absolutely beautiful. Have you posted the ride report on ADVrider yet? ;-) thanks Mat. i am mostly a lurker on ADVi'll just content myself with posting a few PESOs here... :-) regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
Thanks Anthony, I'd love a 400mm lens and a K20D. The trouble is I've been looking for a Sigma 400 f/5.6 APO tele macro to compliment the 300 f/4 APO I have but can't find one. I've been down the teleconverter route but now I'm thinking more pixels to achieve a greater print size hence the K20D is the logical choice, at least the K20D is still in production unlike the Sigma 400. Toine's shots were very good and I enjoyed seeing them epecially when I knew the lens used. Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Anthony Farr [EMAIL PROTECTED] Sent: 27 June 2008 14:56 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. John, Put the 400mm on the K20d and solve all your problems at once ;-) But seriously, no one can tell you what will be acceptable to you. You'll have to set your own standards based on your own experience. Just look at Toine's shots with his new to him 38 year old T-Novoflexar 400/5.6. They're cracking good and couldn't have been better even if he had a brand new lens worth 10 or 20 times more. If you crop your shots, don't sweat it and don't tell us that you cropped. If they're good we'll tell you as much. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 11:16 PM To: Pentax-Discuss Mail List Subject: RE: Sensor resolution V focal length.. Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
On Fri, 27 Jun 2008 09:47:54 -0400 Maxime Thériault [EMAIL PROTECTED] wrote: Very nice :) I like the composition, colors etc.. that place must have been awesome to ride in. Did you use a graduated ND filter on that one though? Is that why the road becomes greenish around the middle? thanks, maxime. no, i didn't use an ND filter. it's the natural colour of the road/ surface. it changes from a reddish brown to a darkish green. such changes are quite common regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
PESO: Coots (Pentax DA* 300mm f/4)
Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: K20D dynamic range question (ISO range, SR x-sync)
Roman Melihhov wrote: I've one very disturbing thing about K20D - X-sync terminal (socket) is very lose and I always lose x-sync cable while rotating the camera. Almost every time I turn it right (portrait), x-sync plug slips out of the socket... I wonder if I can use hotshoe adapter I have instead of x-sync socket. The plug on the synch lead is more likely to be the cause of looseness than is the X-socket. Just pinch the plug gently with pliars so that it becomes slightly oval shaped, then it should be secure. Some X-plugs have a split design and the halves can spread apart, the solution is the same. If contact is unreliable you can very slightly deflect the inner pin so that it rubs more tightly against the socket. Regards, Anthony Farr -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Coots (Pentax DA* 300mm f/4)
Looks very film like. Nice capture, ugly baby birds though. Amazing for 100% crop. I'd love to see what this would look like with the k20d (at the same effective crop so you would get more pixels). On 6/27/08, John Wittingham [EMAIL PROTECTED] wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Coots (Pentax DA* 300mm f/4)
You certainly gave that wonderful lens a stern test and it held up well! When I read the title, I expected to see several men my age sitting around a checker board in the park. ;) Jack --- On Fri, 6/27/08, John Wittingham [EMAIL PROTECTED] wrote: From: John Wittingham [EMAIL PROTECTED] Subject: PESO: Coots (Pentax DA* 300mm f/4) To: pdml@pdml.net pdml@pdml.net Date: Friday, June 27, 2008, 7:25 AM Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO: Coots (Pentax DA* 300mm f/4)
Thanks, I think it needs a little shot of NoiseNinja when I get chance. I'd love to see what the K20D could do as well but I'm trying to resist the temptation to buy one and failing miserably LOL. John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Gonz [EMAIL PROTECTED] Sent: 27 June 2008 15:39 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) Looks very film like. Nice capture, ugly baby birds though. Amazing for 100% crop. I'd love to see what this would look like with the k20d (at the same effective crop so you would get more pixels). On 6/27/08, John Wittingham [EMAIL PROTECTED] wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO: Coots (Pentax DA* 300mm f/4)
LOL thanks Jack. Regards, John. From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Jack Davis [EMAIL PROTECTED] Sent: 27 June 2008 15:44 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) You certainly gave that wonderful lens a stern test and it held up well! When I read the title, I expected to see several men my age sitting around a checker board in the park. ;) Jack --- On Fri, 6/27/08, John Wittingham [EMAIL PROTECTED] wrote: From: John Wittingham [EMAIL PROTECTED] Subject: PESO: Coots (Pentax DA* 300mm f/4) To: pdml@pdml.net pdml@pdml.net Date: Friday, June 27, 2008, 7:25 AM Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: K20D dynamic range question (ISO range, SR x-sync)
- Original Message - From: Roman Melihhov Subject: Re: K20D dynamic range question (ISO range, SR x-sync) I've one very disturbing thing about K20D - X-sync terminal (socket) is very lose and I always lose x-sync cable while rotating the camera. Almost every time I turn it right (portrait), x-sync plug slips out of the socket... I wonder if I can use hotshoe adapter I have instead of x-sync socket. Thats a common problem with x-sync terminals. Squeeze slightly on the cable connection to tighten it up a bit. The guy that taught me wedding photography did it with his teeth, on the theory that it was more difficult to squeeze the terminal end (it is slotted) too much and make it too difficult to insert or remove it from the camera. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
- Original Message - From: Anthony Farr Subject: RE: Sensor resolution V focal length.. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Often, I print at well over 100%. One of my favourites at the moment is a 16x48 inch panoramic from an istD file. The final file is 5760 x 14206 William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PEF vs DNG: The Battle for Hard Drive Space
- Original Message - From: Boris Liberman Subject: Re: PEF vs DNG: The Battle for Hard Drive Space In Israel you could buy a 500 GB hard drive for $120 or thereabouts. I am sure that in US of A the prices are even lower. I don't think that the labor and the time that you are going to spend and then the worry you're going to experience if anything for any reason goes wrong is not worth it. Not to mention, but if you have all your image files on one hard drive only, then at some point, you are going to lose all your image files William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
- Original Message - From: mike wilson Subject: Re: GIMP question Consider that those of us who buy the software are subsidising the 98% of the users who are stealing it. I believe that if that was anywhere near a realistic figure, even Adobe would have figured out that it was better business sense to reduce the price dramatically. I dunno Mike, we live in a world where someone will break your car window to steal a couple of dollars in loose change that you keep for parking money. I don't think it matters where they price it, people will steal what they think they can get away with, and for some reason, even generally honest people have a liberal view of software piracy. Scott kind of summed it up with the it's too expensive for me to buy, so since I wouldn't be buying it, I'm not hurting them by stealing it theory. I'm wondering if I could get a Mercedes Benz that way. A friend of mine taught Photoshop classes for several years at one of our community colleges. I don't recall the precise number he told me for the % of pirated programs, but it was very high, well over three quarters. From what Sandy tells us, now that the Chinese are starting to industrialize, and ripping the program off in large numbers, it wouldn't surprise me at all if the number was close to 90%. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
On Jun 27, 2008, at 7:59 AM, William Robb wrote: ...and for some reason, even generally honest people have a liberal view of software piracy. Scott kind of summed it up with the it's too expensive for me to buy, so since I wouldn't be buying it, I'm not hurting them by stealing it theory. People have a similar attitude to photographs. Think about it ... how many photographs are used without permission nowadays? These things are not valued because people do not see them as tangible goods. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PEF vs DNG: The Battle for Hard Drive Space
On Jun 27, 2008, at 8:13 AM, William Robb wrote: In Israel you could buy a 500 GB hard drive for $120 or thereabouts. I am sure that in US of A the prices are even lower. I don't think that the labor and the time that you are going to spend and then the worry you're going to experience if anything for any reason goes wrong is not worth it. Not to mention, but if you have all your image files on one hard drive only, then at some point, you are going to lose all your image files I have a rule regards my photo files: if I don't have the original and two copies on separate media, the file doesn't exist. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: Interesting Creative Photos
http://haha.nu/creative/creative-photos-by-chema-madoz I love these kinds of photographic formalism. Very inspiring. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Coots (Pentax DA* 300mm f/4)
Very nice, John. Is this taken hand-held? G On Jun 27, 2008, at 7:25 AM, John Wittingham wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PEF vs DNG: The Battle for Hard Drive Space
- Original Message - From: Godfrey DiGiorgi Subject: Re: PEF vs DNG: The Battle for Hard Drive Space I have a rule regards my photo files: if I don't have the original and two copies on separate media, the file doesn't exist. This is why I went to a mirrored RAID for my file storage. As soon as I save the file to my Drive E, I have one level of redundancy. After I save it to my external box, I have 3 levels of redundant back-up. This makes me happy. The Drobo is doing quite well for me, though I haven't had a drive failure yet, so I haven't had to test it. My wife asked me why all of a sudden this was important to me, I never worried about it with film. I explained to her that negatives didn't spontaneously self destruct and take out every film in the file cabnet at the same time (I shot safety film, for the pendants among us). She gets it now, though she thinks that I could be leaving a beter legacy than what I take for pictures. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PEF vs DNG: The Battle for Hard Drive Space
2008/6/27 William Robb [EMAIL PROTECTED]: - Original Message - From: Boris Liberman Subject: Re: PEF vs DNG: The Battle for Hard Drive Space In Israel you could buy a 500 GB hard drive for $120 or thereabouts. I am sure that in US of A the prices are even lower. I don't think that the labor and the time that you are going to spend and then the worry you're going to experience if anything for any reason goes wrong is not worth it. Not to mention, but if you have all your image files on one hard drive only, then at some point, you are going to lose all your image files Amen. I learnt that one the hard way. (technically they were over 2 drives (RAID 0)) Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
- Original Message - From: Godfrey DiGiorgi Subject: Re: GIMP question People have a similar attitude to photographs. Think about it ... how many photographs are used without permission nowadays? About the same time that the quick copy machines hit the camera shops, I gave up entirely and just started handing the negatives over to my wedding clients, on the theory that they were gonna copy them anyway, they may as well get a print from the negative that would make me look better. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
2008/6/27 [EMAIL PROTECTED]: \ dave, for people who have been using open source/free software for years it is more than a question of cost. i guess it's just a different way of looking at the world HAR! OK cost some kinda weird underdog philosophy :-) Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
On Sat, 28 Jun 2008 00:17:53 +0800 David Savage [EMAIL PROTECTED] wrote: 2008/6/27 [EMAIL PROTECTED]: \ dave, for people who have been using open source/free software for years it is more than a question of cost. i guess it's just a different way of looking at the world HAR! OK cost some kinda weird underdog philosophy :-) right, you are almost there... :-) regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO: Coots (Pentax DA* 300mm f/4)
Hi Godfrey, Thanks, yes, hand held. Can you tell? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Godfrey DiGiorgi [EMAIL PROTECTED] Sent: 27 June 2008 16:48 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) Very nice, John. Is this taken hand-held? G On Jun 27, 2008, at 7:25 AM, John Wittingham wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Interesting Creative Photos
Dave: Those were great fun. Thanks for posting. Cheers, Christine - Original Message - From: David Savage [EMAIL PROTECTED] To: Pentax-Discuss Mail List PDML@pdml.net Sent: Friday, June 27, 2008 6:45 AM Subject: OT: Interesting Creative Photos http://haha.nu/creative/creative-photos-by-chema-madoz Enjoy. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Lakescape
Subash: That's terrific! I sure hope you're going to post a good many of your pictures from your trip. Would love to see them. Great work here. Cheers, Christine - Original Message - From: SJ [EMAIL PROTECTED] To: PDML pdml@pdml.net Sent: Thursday, June 26, 2008 11:12 PM Subject: PESO: Lakescape hi, here's a photo from my motorcycle ride through the himalayas/ spiti/ ladakh last week. situated at about 14,500 ft., the Pangong Tso is a brackish water lake that is 135 kilometres long; one third of which is in india, the rest in china. when the sun is out, the changing shades of blue is a delight to watch. my take on the lake: http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) your comments and critique sought... regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Coots (Pentax DA* 300mm f/4)
Looks great, John. Interesting looking chicks there. Sure wish I had that lens! Cheers, Christine - Original Message - From: John Wittingham [EMAIL PROTECTED] To: pdml@pdml.net Sent: Friday, June 27, 2008 9:25 AM Subject: PESO: Coots (Pentax DA* 300mm f/4) Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
not if the print quality was matched, the smaller sensored setup (cropped K20d) would yeild lower image quality, so if you matched print quality, smaller prints would have to be made. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Stenquist Sent: Friday, June 27, 2008 9:43 AM To: Pentax-Discuss Mail List Subject: Re: Sensor resolution V focal length.. If your crops were of the same dimension in pixels and the framing on the bird was the same, the K20D and 300 would yield a slightly larger print. Paul On Jun 27, 2008, at 9:15 AM, John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
nope, the lenses would have to have infinity resolution for the smaller sensored camera (cropped K20D)to match the image resolution of the full K10d image. There are no infinite resolution lenses. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of P. J. Alling Sent: Friday, June 27, 2008 9:47 AM To: Pentax-Discuss Mail List Subject: Re: Sensor resolution V focal length.. If the the resolution of the lenses (and all other optical qualities as well), were equal, and assuming that both lenses met or exceeded the resolution of the sensors. If you took a 10.2 megapixel 2:3 aspect ratio crop from the center of the 14.6MP image, you could make prints with roughly the same resolution from each. If you crop the 14.6MP sensor with a 300mm lens to the same AOV as the 10.2MP sensor with a 400mm lens you will have somewhat more resolution, (I'm not sure how much I haven't done the math in detail, just enough to know that an equivalent crop will contain more MP. John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net
RE: Sensor resolution V focal length..........
image resolution would be WORSE with the shorter lens/K20d setup. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, June 27, 2008 9:48 AM To: Pentax-Discuss Mail List Subject: RE: Sensor resolution V focal length.. Thanks Paul, so in theory at least I could substitute pixels for the focal length I need to achieve the desired result. The DoF will be greater with the shorter lens but the resolution would also probably be better given the same quality of lens. Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Paul Stenquist [EMAIL PROTECTED] Sent: 27 June 2008 14:43 To: Pentax-Discuss Mail List Subject: Re: Sensor resolution V focal length.. If your crops were of the same dimension in pixels and the framing on the bird was the same, the K20D and 300 would yield a slightly larger print. Paul On Jun 27, 2008, at 9:15 AM, John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net
Re: PESO 2008 - 101 - GDG
Cool! I like it very much. Cheers, Christine - Original Message - From: Godfrey DiGiorgi [EMAIL PROTECTED] To: PAW Picture-A-Week project [EMAIL PROTECTED]; [EMAIL PROTECTED]; SeePhoto Talk [EMAIL PROTECTED]; PDML List PDML@pdml.net; DUG [EMAIL PROTECTED] Sent: Thursday, June 26, 2008 2:08 PM Subject: PESO 2008 - 101 - GDG Morning walk in light mists, near dawn ... http://homepage.mac.com/godders/101-threes.jpg Threes - Neighborhood Details 2008 Olympus E-1 + Summilux-D 25mm f/1.4 ASPH + Olympus EC14 ISO 200 @ f/2.0 @ 1/400 sec, fl=35mm Comments and critique always appreciated. enjoy Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - DA* 300/4 sample shot
Very neat, Jostein. I've never tried auto-selection focus--just haven't thought of trying it. Think I might. Cheers, Christine - Original Message - From: AlunFoto [EMAIL PROTECTED] To: Pentax-Discuss Mail List pdml@pdml.net Sent: Thursday, June 26, 2008 8:54 AM Subject: PESO - DA* 300/4 sample shot This hunting tern was observed yesterday afternoon by the Eastern end of the Greenland Dock, Southwark Bourough, London. I think it is a good testimony both to the capability of the lens, and to the AF capability of the K20D. I had the AF set for auto-selection of sensor, because I had to keep full concentration on keeping the tern inside the frame. Out of about 20 shots with varying background (clouds, blue sky, foliage, and brick walls as here), only 2 are focused on the background. Pretty neat, eh? :-) http://www.alunfoto.no/galleri/displayimage.php?pos=-97 A crop (not 1:1) http://www.alunfoto.no/galleri/displayimage.php?pos=-98 Exposure: 1/1000s, f/5.6, ISO 200. Best, Jostein -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO 2008 - 100 (resend) - GDG
Godfrey: I think all the elements are exactly where they should be to convey your idea here. Very well executed here! Cheers, Christine - Original Message - From: Godfrey DiGiorgi [EMAIL PROTECTED] To: PAW Picture-A-Week project [EMAIL PROTECTED]; [EMAIL PROTECTED]; SeePhoto Talk [EMAIL PROTECTED]; PDML List PDML@pdml.net; DUG [EMAIL PROTECTED] Sent: Wednesday, June 25, 2008 7:30 PM Subject: PESO 2008 - 100 (resend) - GDG Sorry: changed the file name and didn't update the email. --- Today on my morning walk ... http://homepage.mac.com/godders/100-departing.jpg Departing - This Cafe Life 2008 Olympus E-1 + Summilux-D 25mm f/1.4 ASPH ISO 100 @ f/1.4 @ 1/320 sec Comments and critique always appreciated. enjoy Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: Interesting Creative Photos
David Savage wrote: http://haha.nu/creative/creative-photos-by-chema-madoz Enjoy. Cheers, Dave I think my favorite is the C-Clamp. very funny. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
I think you've got that wrong, Paul ... did you forget to square? The sensors in the K10D and K20D are both the same physical size, so a 400mm lens on each camera will cover the same angle of view. If, instead, you fit a 300mm lens, and crop to the field of view of a 400mm lens, you'll end up with an image that's only got just over half as many pixels (3/4 x 3/4 = 9/16) - 8.2 Megapixels from the central portion of the K20D sensor. Just cropping to the same number of pixels as in the K10D sensor gives you pretty much the effect of a 1.2x focal length multiplier. (OK WW - you can scream now :-) On Fri, Jun 27, 2008 at 09:43:07AM -0400, Paul Stenquist wrote: If your crops were of the same dimension in pixels and the framing on the bird was the same, the K20D and 300 would yield a slightly larger print. Paul On Jun 27, 2008, at 9:15 AM, John Wittingham wrote: Thanks for the responses, OK I think I need to re-word this altogether, Pentax K10D 10.2 Megapixels fitted with 400mm lens v's Pentax K20D 14.6 Megapixels fitted with 300mm lens, assuming both lenses produce excellent results, which combination would give the bigger print size from a crop at the center of the frame if yoy were for example shooting a distant bird at the same distance in each case? Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of J. C. O'Connell [EMAIL PROTECTED] Sent: 27 June 2008 13:18 To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. Are you trying to say that there will be no resolution loss in using a K20D with a shorter lens vs a K10D with a longer lens if the AOV of the image is kept the same via cropping the K20D image? The REAL sensor size of the 2 cameras are NOT EQUIVALENT if you crop the K20D image and use a shorter fl lens. JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Farr Sent: Friday, June 27, 2008 8:03 AM To: 'Pentax-Discuss Mail List' Subject: RE: Sensor resolution V focal length.. The crop will be the same from K10d to K20d, because the crop factor is related to the sensor dimension not its resolution, and the two cameras have equivalent sensor dimensions. The K20D shots will enlarge more at 100% view, simply because it has a greater pixel density. This doesn't mean anything other than that your monitor resolution (e.g. 1024 x 768)represents a smaller patch of the K20ds sensor compared to the K10d. The whole picture will have the same field of view for the same lens when the two camera models are compared. You wouldn't print at 100%, the only practical use for this view is when performing some editing functions, and for pixel peeping. Regards, Anthony Farr -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Wittingham Sent: Friday, 27 June 2008 8:59 PM To: pdml@pdml.net Subject: Sensor resolution V focal length.. I'm in need of some longer glass, longer than 300mm. It occured to me the other day that the crop of a given area of a frame would be consirerably bigger the more resolution you have from the sensor of the camera viewed at 100%. So I'm thinking 400mm on the K10D would be approximately 33% bigger at the same crop as it would be from 300mm viewed at 100% right? So if I'm using a K20D how much bigger would a crop of the same subject shot with the K10D be viewed at 100%, could I substitute pixels for focal length providing the lens resolution is up to the job? Are there any downsides other than the obvious differences when using a shorter focal length such as DoF? Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net
Re: P-TTL and how-to-disable question
Op Fri, 27 Jun 2008 00:30:49 +0200 schreef Charles Robinson [EMAIL PROTECTED]: Just thinking aloud... about how to use my screwy 540 for a while before sending it in for repairs. If I were to somehow cover all of the pins except for the center one and the 1st original I'm a dedicated Pentax flash and this is how I signal to you that I'm charged pin, would the thing default to the A mode when I put it on the K10D? Reading the KMP you'd need the 'mode' pin as well, so you'd just cover the digital (single front) pin. That would get me by for about 85% of what I use a flash for. I know it seems to work that way when I attach it to the ME-Super. I know I'm delaying the inevitable co$t of $ending it in for repair $ but money is tight right now. Thoughts? Ideas? Am I nuts? Insufficient data to decide. Try it out, I'd say... -- Ciao, Lucas -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GIMP question
There's Krita. It's got colour management, 16 bit support, a friendly user interface. But it's somewhat slow, at least in my system. It's worth a try if you use one of the Linux variants. Carlos Sandy Harris escribió: Assuming one wants to use only open source software and has reasonable resources -- some variant of Unix, a few cores at a few gigahertz each, several gigs of RAM and a decent video system -- what are the alternatives to GIMP? -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PEF vs DNG: The Battle for Hard Drive Space
On Jun 27, 2008, at 9:00 AM, William Robb wrote: I have a rule regards my photo files: if I don't have the original and two copies on separate media, the file doesn't exist. This is why I went to a mirrored RAID for my file storage. As soon as I save the file to my Drive E, I have one level of redundancy. After I save it to my external box, I have 3 levels of redundant back-up. This makes me happy. I was using two 500G standalone drives, twins with data copied from the working drive. But I filled them recently ... Now I've got two 2T RAID 0 drives, being backed up the same way. I considered configuring as a RAID 1, so they'd be doubly redundant. I now have three copies of the data most of the time: on the working drive, and one copy on each of the backups. The Drobo is doing quite well for me, though I haven't had a drive failure yet, so I haven't had to test it. Seems a darn good unit, based on the comments I've been hearing. Keep us informed as to how you find it over time. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Coots (Pentax DA* 300mm f/4)
I thought so. It didn't seem quite as sharp as what I'd expect from an exposure with a sturdy tripod ... thought I saw a small amount of camera motion blur. What was the exposure time? Godfrey My sharpest lens is a sturdy tripod. ]'-) On Jun 27, 2008, at 9:20 AM, John Wittingham wrote: Thanks, yes, hand held. Can you tell? Very nice, John. Is this taken hand-held? On Jun 27, 2008, at 7:25 AM, John Wittingham wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
GIMP Tangent
BTW, I finally got around to checking; my fastest Linux box is faster than I'd remembered: 1.7GHz. But it's not a good candidate for putting Windows on, at least not as a workstation. It's noisy, and I'd have to unbolt it from the rack it's in and move it to a more comfortable room for working in. (Most of my computers don't have to be in places where I can sit comfortably and have the right lighting, 'cause I use most of 'em over the network from the ones that _are_ more ergonomically situated. I'm trying to replace more of the servers with rackmount gear (and as I get faster rackmount machines, some of the existing services can be consolidated into fewer computers). -- Glenn -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Coots (Pentax DA* 300mm f/4)
Hi Christine Thanks for the comment, not the prettiest of chicks are they. I'm a little disappointed with the lens BTW. John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Christine Aguila [EMAIL PROTECTED] Sent: 27 June 2008 17:25 To: Pentax-Discuss Mail List Subject: Re: Coots (Pentax DA* 300mm f/4) Looks great, John. Interesting looking chicks there. Sure wish I had that lens! Cheers, Christine - Original Message - From: John Wittingham [EMAIL PROTECTED] To: pdml@pdml.net Sent: Friday, June 27, 2008 9:25 AM Subject: PESO: Coots (Pentax DA* 300mm f/4) Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg Comments and critique welcome. Regards, John -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Sensor resolution V focal length..........
J. C. O'Connell [EMAIL PROTECTED] wrote: nope, the lenses would have to have infinity resolution for the smaller sensored camera (cropped K20D)to match the image resolution of the full K10d image. There are no infinite resolution lenses. Wouldn't the lense merely have to have sufficient resolution for the denser sensor, not infinite resolution? If you want to extrapolate the process _ad_infinitum_, of course, to television-crime-show levels of zooming-in ability, yeah, but given the real-world examples of the K10D and K20D, and 300mm and 400mm lenses, we should be abe to calculate a finite lens resolution that would be enough, wouldn't we? Or am I missing some crucial step? -- Glenn -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO: Coots (Pentax DA* 300mm f/4)
Hi Godfrey Yes I thought as much myself, it was early morning (7am) here in the UK, it's been raining the past couple of days and overcast so the light was not good. Exposure time was down to 1/200 sec @ f5.6 ISO400, I didn't want to increase ISO with the K10D, I prefer to keep below 400. I quite often stop at this place on my way to work, gather my thought for 15 minutes, sometimes taking a few shots. There's a boat house (now a cafe) in an area that gives any ultrawide lens a thorough test, it's the first thing I shoot with wide lenses. I'll post a PESO some day and all will become obvious. Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Godfrey DiGiorgi [EMAIL PROTECTED] Sent: 27 June 2008 19:05 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) I thought so. It didn't seem quite as sharp as what I'd expect from an exposure with a sturdy tripod ... thought I saw a small amount of camera motion blur. What was the exposure time? Godfrey My sharpest lens is a sturdy tripod. ]'-) On Jun 27, 2008, at 9:20 AM, John Wittingham wrote: Thanks, yes, hand held. Can you tell? Very nice, John. Is this taken hand-held? On Jun 27, 2008, at 7:25 AM, John Wittingham wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Sensor resolution V focal length..........
THE PROBLEM IS THAT AT CURRENT PIXEL DENSITIES OF THE SENSORS (fairly high relative to lens resolutions), THE LENS'S RESOLUTION IS STILL A MAJOR FACTOR OF TOTAL SYSTEM RESOLUTION. My point was that in order for you to continue making the sensor smaller and smaller than APS without losing ANY system resolution, you would need perfect lenses of infinate resolution. Going smaller than APS is worse, not as good as APS for the system resolution. Going the other way, towards FF is better way to go because the overall resolution of the system will increase with same quality lenses as today, even if you kept the sensor resolution the same (just bigger, FF, but not higher resolution sensors). JC OCONNELL [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of D. Glenn Arthur Jr. Sent: Friday, June 27, 2008 2:56 PM To: pdml@pdml.net Subject: Re: Sensor resolution V focal length.. J. C. O'Connell [EMAIL PROTECTED] wrote: nope, the lenses would have to have infinity resolution for the smaller sensored camera (cropped K20D)to match the image resolution of the full K10d image. There are no infinite resolution lenses. Wouldn't the lense merely have to have sufficient resolution for the denser sensor, not infinite resolution? If you want to extrapolate the process _ad_infinitum_, of course, to television-crime-show levels of zooming-in ability, yeah, but given the real-world examples of the K10D and K20D, and 300mm and 400mm lenses, we should be abe to calculate a finite lens resolution that would be enough, wouldn't we? Or am I missing some crucial step? -- Glenn -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
Thanks Paul, thanks Doug and JC. I thought Anthony nailed it as a Fleetwood Series 75, but I will check out the Eldorados from those years too. Lasse - Original Message - From: Paul Stenquist [EMAIL PROTECTED] To: Pentax-Discuss Mail List pdml@pdml.net Sent: Friday, June 27, 2008 3:52 PM Subject: Re: OT: For experts on American cars. What car? It appears to be a 1957 Cadillac, probably an Eldorado. It might be a 1958, but without looking at reference, I'd bet on '57. The styling changed every year in those days and both the 1956 and 1959 models are very different. Paul Stenquist On Jun 27, 2008, at 5:59 AM, Lasse Karlsson wrote: Hi all, Summer greetings from the Aland Islands! Since I know that many PDML-members don't mind talking a little about cars in between the camera and photo discusssions - can anybody tell me make, model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Thanks, Lasse -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 270.4.0/1508 - Release Date: 18.6.2008 21:08 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GESO: A Girls' Folly
On 27/6/08, Derby Chang, discombobulated, unleashed: A little off my game last night. The Hopetoun lighting has always been a touch iffy, and the sound mix wasn't the best. But I still had a ball. http://members.iinet.net.au/~derbyc/08_06/08_06_girlsfolly/index.htm Sorry, didn't get any pix of the 2nd support. Was out the back on the smoko lounge with my friend, chatting. Number 3 does it for me. I'm looking for Heliar 15/4.5 and a 21mm finder :) -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Coots (Pentax DA* 300mm f/4)
- Original Message - From: John Wittingham [EMAIL PROTECTED] I'm a little disappointed with the lens BTW. John hmmm. I'd interested in knowing why . . . Cheers, Christine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
PESO 2008 - 102 - GDG
Another in this undying series ... http://homepage.mac.com/godders/102-break_over.jpg Break Over - This Cafe Life 2008 Panasonic L1 + Vario-Elmarit-D 14-50mm f/2.8-3.5 ASPH OIS ISO 100 @ f/3.5 @ 1/100 sec, fl=35mm Comments and critique always appreciated. enjoy Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
I believe its styling was derived from the Eldorados, but it's definitely the Fleetwood Series 75. G On Jun 27, 2008, at 12:24 PM, Lasse Karlsson wrote: Thanks Paul, thanks Doug and JC. I thought Anthony nailed it as a Fleetwood Series 75, but I will check out the Eldorados from those years too. Lasse - Original Message - From: Paul Stenquist [EMAIL PROTECTED] To: Pentax-Discuss Mail List pdml@pdml.net Sent: Friday, June 27, 2008 3:52 PM Subject: Re: OT: For experts on American cars. What car? It appears to be a 1957 Cadillac, probably an Eldorado. It might be a 1958, but without looking at reference, I'd bet on '57. The styling changed every year in those days and both the 1956 and 1959 models are very different. Paul Stenquist On Jun 27, 2008, at 5:59 AM, Lasse Karlsson wrote: Hi all, Summer greetings from the Aland Islands! Since I know that many PDML-members don't mind talking a little about cars in between the camera and photo discusssions - can anybody tell me make, model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Coots (Pentax DA* 300mm f/4)
Hmm, an ISO 800 exposure would have been better if you'd added .3 EV compensation; it's ever so slightly underexposed as it is. Of course, it would have been better still with a tripod ... ;-) G On Jun 27, 2008, at 12:08 PM, John Wittingham wrote: Hi Godfrey Yes I thought as much myself, it was early morning (7am) here in the UK, it's been raining the past couple of days and overcast so the light was not good. Exposure time was down to 1/200 sec @ f5.6 ISO400, I didn't want to increase ISO with the K10D, I prefer to keep below 400. I quite often stop at this place on my way to work, gather my thought for 15 minutes, sometimes taking a few shots. There's a boat house (now a cafe) in an area that gives any ultrawide lens a thorough test, it's the first thing I shoot with wide lenses. I'll post a PESO some day and all will become obvious. Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Godfrey DiGiorgi [EMAIL PROTECTED] Sent: 27 June 2008 19:05 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) I thought so. It didn't seem quite as sharp as what I'd expect from an exposure with a sturdy tripod ... thought I saw a small amount of camera motion blur. What was the exposure time? Godfrey My sharpest lens is a sturdy tripod. ]'-) On Jun 27, 2008, at 9:20 AM, John Wittingham wrote: Thanks, yes, hand held. Can you tell? Very nice, John. Is this taken hand-held? On Jun 27, 2008, at 7:25 AM, John Wittingham wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Coots (Pentax DA* 300mm f/4)
There's a little bit of purple fringing at the edge of the frame in high contrast situations, you have to look for it, but it is there. The Sigma 300 f/4 APO that I've had for years is free of any such problems. I think I need to use the DA more before I can come to any real conclusions about image quality but it is sharp. John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Christine Aguila [EMAIL PROTECTED] Sent: 27 June 2008 21:01 To: Pentax-Discuss Mail List Subject: Re: Coots (Pentax DA* 300mm f/4) - Original Message - From: John Wittingham [EMAIL PROTECTED] I'm a little disappointed with the lens BTW. John hmmm. I'd interested in knowing why . . . Cheers, Christine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: Lakescape
Wow, that looks like a very neat place to travel. -- Best regards, Bruce Thursday, June 26, 2008, 9:12:29 PM, you wrote: S hi, S here's a photo from my motorcycle ride through the S himalayas/ spiti/ ladakh last week. S situated at about 14,500 ft., the Pangong Tso is a brackish water lake S that is 135 kilometres long; one third of which is in india, the rest S in china. when the sun is out, the changing shades of blue is a delight S to watch. my take on the lake: S http://picasaweb.google.com/pdml.live/PESO/photo#5216402765997357394 S K10D, 16-45mm with a CPL, RAW, processed with Digikam under Linux :-) S your comments and critique sought... S regards, subash -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO: Coots (Pentax DA* 300mm f/4)
Agreed, but my brain isn't engaged at 7am in the morning 8) John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Godfrey DiGiorgi [EMAIL PROTECTED] Sent: 27 June 2008 21:37 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) Hmm, an ISO 800 exposure would have been better if you'd added .3 EV compensation; it's ever so slightly underexposed as it is. Of course, it would have been better still with a tripod ... ;-) G On Jun 27, 2008, at 12:08 PM, John Wittingham wrote: Hi Godfrey Yes I thought as much myself, it was early morning (7am) here in the UK, it's been raining the past couple of days and overcast so the light was not good. Exposure time was down to 1/200 sec @ f5.6 ISO400, I didn't want to increase ISO with the K10D, I prefer to keep below 400. I quite often stop at this place on my way to work, gather my thought for 15 minutes, sometimes taking a few shots. There's a boat house (now a cafe) in an area that gives any ultrawide lens a thorough test, it's the first thing I shoot with wide lenses. I'll post a PESO some day and all will become obvious. Regards, John From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Godfrey DiGiorgi [EMAIL PROTECTED] Sent: 27 June 2008 19:05 To: Pentax-Discuss Mail List Subject: Re: PESO: Coots (Pentax DA* 300mm f/4) I thought so. It didn't seem quite as sharp as what I'd expect from an exposure with a sturdy tripod ... thought I saw a small amount of camera motion blur. What was the exposure time? Godfrey My sharpest lens is a sturdy tripod. ]'-) On Jun 27, 2008, at 9:20 AM, John Wittingham wrote: Thanks, yes, hand held. Can you tell? Very nice, John. Is this taken hand-held? On Jun 27, 2008, at 7:25 AM, John Wittingham wrote: Shot this morning with the K10D using the DA* 300 f/4, 100% crop from the center @ f/5.6, ISO400 http://photo.net/photodb/photo?photo_id=7458880size=lg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: For experts on American cars. What car?
Anthony is right. It's a limo, so it has to be a Fleetwood. Paul -- Original message -- From: Lasse Karlsson [EMAIL PROTECTED] Thanks Paul, thanks Doug and JC. I thought Anthony nailed it as a Fleetwood Series 75, but I will check out the Eldorados from those years too. Lasse - Original Message - From: Paul Stenquist [EMAIL PROTECTED] To: Pentax-Discuss Mail List pdml@pdml.net Sent: Friday, June 27, 2008 3:52 PM Subject: Re: OT: For experts on American cars. What car? It appears to be a 1957 Cadillac, probably an Eldorado. It might be a 1958, but without looking at reference, I'd bet on '57. The styling changed every year in those days and both the 1956 and 1959 models are very different. Paul Stenquist On Jun 27, 2008, at 5:59 AM, Lasse Karlsson wrote: Hi all, Summer greetings from the Aland Islands! Since I know that many PDML-members don't mind talking a little about cars in between the camera and photo discusssions - can anybody tell me make, model and production years of the car in the photo at the link below? http://photo.net/photodb/photo?photo_id=7458336 Thanks, Lasse -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 270.4.0/1508 - Release Date: 18.6.2008 21:08 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
