re: Pentax ist DS shutter.
On 9 Apr 2005 at 21:17, Godfrey DiGiorgi wrote: I'm rather astonished that you are all so misinformed and do not understand how digital cameras and digital SLRs operate with regard to the sensor and shutter... Rob, The same thing for the Olympus E10/20. OK, I submit to your superior knowledge (and distinct lack of tact). I haven't owned the E-10 for around 18 months now so my recollection is hazy. I can only assume that the shutter must be in the light path as there is no room for in in front of the sensor and behind the beam splitter and it must be closed for a very shot period of time after the shutter is depressed as the lag before image capture is less than 100ms. I expect that the aperture leaves are used as a leaf shutter but I can't remember noticing it. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
Re: TSS: Thrift Shop Saturday
On Apr 9, 2005, at 3:43 PM, Collin R Brendemuehl wrote: Got a goodie today. Priced fairly, and a bargain for the Euros among us. Rollei 35 S. Rollei HFT Sonnar 40/2.8 Excellent condition. With case a fresh battery. $300 (shipped!) US, Europe, GB, Japan, Canada. Excellent camera. I have two of them still, and they will be the last film cameras I sell, if I ever do. Godfrey
Re: OT: Hard-copy enablement
On Apr 9, 2005, at 9:41 PM, David Oswald wrote: ...I did a little web research, and ended up deciding on the HP Photosmart 8450. ... Hopefully I made the right decision. The printer should arrive in a few days: $199 at buydig.com (I decided to give pricegrabber.com a try, and BuyDig was the lowest price with a reasonable reputation.) Anyone have any comments or tips for this printer? That's the upgraded version of the HP7960, which I've been using for the past six months. Excellent printers ... the 8450 has resolved some imaging issues which show up on the 7960 occasionally (a light herringbone pattern can appear in certain prints under close inspection). Same inks although in different cartridges (don't know why they did that). HP's inks are a little pricey, and I prefer the Epson Premium Glossy and Matte paper surfaces to the HP papers, but the Epson papers work fine in it too. The only downside to the fact that the nozzles are contained in the ink cartridge is that calibration shifts a little bit as you change cartridges, but I've not found this to be a problem in practical use. Godfrey
Re: inside Pentax *ist DS ...
--- Jim Apilado [EMAIL PROTECTED] wrote: I own three transparent Pentax bodies, the SF1, PZ10, and a 110 Pentax. It would be cool if Pentax had made a transparent *ist D- and I could get one. Is DS good enough? http://www.pbase.com/wlachan/image/41855760 Alan Chan http://www.pbase.com/wlachan __ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your mobile phone. http://mobile.yahoo.com/learn/mail
Re: GESO - California Poppies
Joe, All handheld, all manual focus 1698a - Tokina AT-X 400/5.6 - ISO 400, 1/350 @ f/5.6 1677 - Tokina AT-X 400/5.6 - ISO 400, 1/750 @ f/8.0 1592 - Tokina AT-X 400/5.6 - ISO 800, 1/1000 @ f/8.0 1655 - Pentax A 70-210/4 - ISO 200, 1/350 @ f/8.0 1660 - Pentax A 70-210/4 - ISO 200, 1/250 @ f/11.0 1642a - Pentax A 70-210/4 - ISO 200, 1/500 @ f/5.6 1590 - Tokina AT-X 400/5.6 - ISO 800, 1/2000 @ f/8.0 1591 - Tokina AT-X 400/5.6 - ISO 800, 1/750 @ f/8.0 1382 - Kyocera M410R Prosumer (my daughter's camera) 1576 - Tokina AT-X 400/5.6 - ISO 400, 1/1000 @ f/5.6 1383 - Kyocera M410R Prosumer (my daughter's camera) 1436 - Pentax A 70-210/4 - ISO 400, 1/3000 @ f/4.0 1556 - Tokina AT-X 400/5.6 - ISO 800, 1/3000 @ f/8.0 1701a - Tokina AT-X 400/5.6 - ISO 800, 1/750 @ f/8.0 -- Best regards, Bruce Saturday, April 9, 2005, 9:39:59 AM, you wrote: JT Thanks Joe. I find that the longer focal lengths really help isolate JT the subject better. JT - JT Bruce, were the poppy photos also taken with the Tokina 400? JT jof
Re: inside Pentax *ist DS ...
On 10 Apr 2005 at 0:08, Alan Chan wrote: --- Jim Apilado [EMAIL PROTECTED] wrote: I own three transparent Pentax bodies, the SF1, PZ10, and a 110 Pentax. It would be cool if Pentax had made a transparent *ist D- and I could get one. Is DS good enough? http://www.pbase.com/wlachan/image/41855760 That's just cruel :-) Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
Re: One for the Gipper
Funny, I was reading a review in a digital photo mag., the author seemed to think that the D70 had the superior viewfinder. Humm... (Not in my experience...) Bruce Dayton wrote: A friend of mine asked for help in picking a DSLR. She has been using a Nikon N75 with 28-80 zoom to date. Prior to that she was using an old Canon FD mount body. When she talked to me, she was just about ready to buy the D70 based on internet hype and the local store being a strong Nikon seller. We discussed what she wanted to do with the camera now and in the not too distant future. Her indication was that, besides family/kid memories, she had started into portraiture and wanted to continue that direction. So with that in mind, I discussed and worked with her on the angle of manually focusing and composing. She is a convert away from AF for this type of work now. So suddenly the quality of the viewfinder became very important. The ability to clearly compose and focus on the matte screen became among her most important features of the camera. I sent her around to look at the D70, RebelXT, Evolt and DS bodies with this in mind. She came back and reported the order of usability of the viewfinder for the stated purpose as Pentax *istDS Canon RebelXT Olympus Evolt Nikon D70 Yesterday I stopped at the local store and tried the D70 and *istDS side by side with 50mm lenses on each. The D70 was barely usable (I would hate it) and the *istDS was clearly better for this. So today she picked up her brand new *istDS. I was very pleased that someone would get past the hype and really pick something that would work best for what they wanted to do. -- I can understand why mankind hasn't given up war. During a war you get to drive tanks through the sides of buildings and shoot foreigners - two things that are usually frowned on during peacetime. --P.J. O'Rourke
Re: First Macro Stuff
On 10/4/05, Peter Williams, discombobulated, unleashed: 'ladybird' is the British name of what you call a 'ladybug' :-) It's also what we call them here in Australia where we use proper English. Apologies Peter - forgive my bad. Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Re: OT: Hard-copy enablement
On 9/4/05, David Oswald, discombobulated, unleashed: Anyone have any comments or tips for this printer? Like most printers, use it at least once a week to counter ink drying out in the head(s). I have a Canon S9000 that I bought used and eventually had to replace the head, which was only about 75 GBP and an easy swap. It's such a good printer that for me it was worth it. Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Willing to trade - getting a DS
If anyone has a DS but would prefer good old Z1 / Super A / P30t / MX I am willing to trade (all of'em if ya want lol). BTW what is a normal price in the US for DS body only? In Europe it is still 900-1000 euros which is a shame !! Is 700 dollars about normal ? -- Thibouille -- Z1,SuperA,KX,MX,P30t and KR-10x ...
Re: PESO - Gobsmacking Light
On 10/4/05, mike wilson, discombobulated, unleashed: Not who, what. Gob is slang for mouth. So gobsmacked means hit in the mouth. In other words, rendered speechless. Not polite but a common term for something that astonishes. What he said. Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Re: PESO - Gobsmacking Light
On 10/4/05, Boris Liberman, discombobulated, unleashed: I was told that swearing shouldn't be done in public... You know, the bAd words? :) Cotty, you seem to have outdone yourself... Thanks Boris. Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _
Re: Willing to trade - getting a DS
Thibouille escribió: If anyone has a DS but would prefer good old Z1 / Super A / P30t / MX I am willing to trade (all of'em if ya want lol). BTW what is a normal price in the US for DS body only? In Europe it is still 900-1000 euros which is a shame !! In most Internet shops in Europe you can buy an *ist DS for about 800 euros, VAT included. Carlos
Re: Pentax ist DS shutter.
On Apr 10, 2005, at 5:05 AM, Don Sanderson wrote: Sounds like the same disease I have. Curiousititis. ;-) I tend to do the same (I am an engineer - that's my excuse anyway)... but I do have my limits. I won't take anything apart that I don't think I'll be able to put back together. I also tend to avoid disassembling expensive things that are still under warranty. The ones I own, anyway. Cheers, - Dave http://www.digistar.com/~dmann/
Re: OT: Hard-copy enablement
On Apr 10, 2005, at 4:41 PM, David Oswald wrote: One sellingpoint for me was that with the HP model, the jets are built into the replacable ink tanks. That means that although tank replacements are a little more costly, at least having a clogged printhead isn't going to mean I have to give up on the printer. I had to run 4 (or was it 5) consecutive cleaning cycles on my Epson 2100 last night before the nozzles were fully un-clogged. These things need to be run regularly - mine had been idle for a few weeks. So I think you decided well. The new roll-paper cutter works very well though. It finally turned up two months after I'd ordered it. Cheers, - Dave http://www.digistar.com/~dmann/
Re: The Stools by the Window
I'll second that. William Robb wrote: Would have been better with girls wearing thongs. b.. - Original Message - From: frank theriault Subject: PAW: The Stools by the Window -- I can understand why mankind hasn't given up war. During a war you get to drive tanks through the sides of buildings and shoot foreigners - two things that are usually frowned on during peacetime. --P.J. O'Rourke
Re: First Macro Stuff
On Apr 10, 2005, at 8:46 AM, Cotty wrote: On 9/4/05, Boris Liberman, discombobulated, unleashed: http://www.flickr.com/photos/boris71/8902760/ Well done Boris - that's one of the nicest ladybird pics I've ever seen! Hear hear... great photo. Put it on the wall. In these parts we call that plane a microlight. Cheers, - Dave http://www.digistar.com/~dmann/
Cheap digital PS
The Wally World where I work has just received a shipment of 3MP PS digital cameras. I haven't seen any results yet, but the specs are pretty impressive for a $60.00 digital. It has 16MB of internal memory, 1.5 inch LCD screen and an SD card slot. We've sold a few to parents for their younger children. Bill
Speaking of inexpensive PS
Earlier this week my Optio S decided to stop working. We also recently received a shipment of the Pentax Optio 50. It's not listed on the Pentax website, and is apparently built for sale through national accounts such as Wal-Mart. Anyway, it's 5MP, 1.8 inch LCD, SD slot and uses AA batteries (2). Although I haven't installed the software yet, it can also be used as a webcam for those that use them, I don't. Cost is $197.00 US, pretty reasonable for a 5MP IMHO. Bill
RE: Pentax ist DS shutter.
From what I was able to see my Olympus C5050 simply stopped down and captured the image. With the aperture wide open I could see the sensor thru the lens the whole time the exposure was being made. At no time did the iris close. The 5050 is a prosumer grade, far from a simple camera. Here is an article from photo.net which covers interline transfer and how it differs from the technology currently used in DSLRs: http://www.photo.net/equipment/digital/cameras/basics/ It's in the section under Sensor Size. I'm not trying to be argumentitive but most digital PnS's are capable of capturing video clips, it is the ability to capture data in real time that allows this. They do not need to trip a mechanical shutter for each frame. They simply freeze the current image, write it to a buffer, and go on to the next frame capture. This was NOT true of many of the early digitals. which did indeed use a mechanical shutter of sorts. They however did not capture video or give a real time preview display. Bottom line is that everyone's correct, it just depends on which generation/type of technology is being referred to. Don -Original Message- From: Rob Studdert [mailto:[EMAIL PROTECTED] Sent: Sunday, April 10, 2005 1:06 AM To: pentax-discuss@pdml.net Subject: re: Pentax ist DS shutter. On 9 Apr 2005 at 21:17, Godfrey DiGiorgi wrote: I'm rather astonished that you are all so misinformed and do not understand how digital cameras and digital SLRs operate with regard to the sensor and shutter... Rob, The same thing for the Olympus E10/20. OK, I submit to your superior knowledge (and distinct lack of tact). I haven't owned the E-10 for around 18 months now so my recollection is hazy. I can only assume that the shutter must be in the light path as there is no room for in in front of the sensor and behind the beam splitter and it must be closed for a very shot period of time after the shutter is depressed as the lag before image capture is less than 100ms. I expect that the aperture leaves are used as a leaf shutter but I can't remember noticing it. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
Re: Battery Management
Sunday, April 10, 2005, 6:24:18 AM, David wrote: DO NiMH batteries do self-discharge relatively rapidly; even moreso than DO NiCads. Fortunately, they don't have as much of a memory issue as DO NiCds. They do take several charge-discharge cycles to reach their DO fullest capacity though. In all I have read about batteries, it seems to me that the memory effect is not real, except in very controlled laboratory conditions. The loss of capacity most people describe to memory effect is just bad charging technique, overcharging, too rapid charging for the battery and similar faults. At least that's how I understand it :) Good light! fra
Re: inside Pentax *ist DS ...
AC Is DS good enough? AC http://www.pbase.com/wlachan/image/41855760 :-) I another stroke of marketing ingenuinty and design genius (just remember these silver LTDs on black MZ-S), Pentax succeeded in making the world's first half-naked transparent camera... Oh god what were they thinking when they left the shoulders shrouded in black? More appeal or what? Good light! fra
Re: Hello and Sensor cleaning
Sorry for the caps on in my reply. Gotta look at the screen more.:-) I have a set of swabs and fluid,but i'm to chicken to use them. Dave Whatever's least invasive and does the job is probably the way to go. It's not hard to see why the manufacturers wouldn't advise anyone to go poking around in there with sticks. I've avoided canned air applied directly and will probably pick up a hurricane blower at some point. The clean soft brush approach seems fairly safe and it does work. I'm definitely not brave enough to be rubbing it with wet swabs. I can't say that it's been much of a problem so far. It will be interesting to see what it's like this summer when I start spending time at county fairs again. -- Alan P. Hayes
Re: Hello and Sensor cleaning
I keep my camera pointing down as much as possible when changing lenses. I also clean my sensors once a week with an ear syringe blower, whether I think they need it or not. I did it last night, and couldn't see a spec on either. But I think frequent cleanng keeps those specs from gaining a tight foothold. I've never had to resort to anything more severe than the syringe blower, and that's with two cameras and 21 months/ 15000 frames of combined use. Paul On Apr 9, 2005, at 11:28 PM, David Savage wrote: Hey I do that (sometimes). But it's more in the hope that the dust will fall out g Dave S On Apr 10, 2005 11:20 AM, Rob Studdert [EMAIL PROTECTED] wrote: snip some photographers even advocate facing cameras down when changing lenses so the dust doesn't fall in? snip Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
Re: A bit OT: Stones in My Pathway
I've been tracking them as well. :-(( On Apr 10, 2005, at 1:51 AM, Rob Studdert wrote: On 10 Apr 2005 at 7:32, Jens Bladt wrote: It must be the season for trading 300mm lenses. There's two F 4.5 and one FA 4.5 up at ebay at the moment. Yes I know I was watching them :-( Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
RE: Pentax ist DS shutter.
-Original Message- From: Godfrey DiGiorgi [mailto:[EMAIL PROTECTED] Nearly all digital cameras have a mechanical shutter. Only very I'm rather astonished that you are all so misinformed and do not understand how digital cameras and digital SLRs operate with regard to the sensor and shutter... Peter, If you look down the barrel of the lens of your A2 and release the shutter, you'll see the shutter operate. Don, The way small sensor digital cameras work is like this: - Normal focusing/framing/viewing mode, the shutter is OPEN and the sensor chip is in live acquisition mode, refreshing its buffer according to the set refresh rate (30 or 60 fps on the KM A2). - At the time you press the shutter release to make an exposure, the camera: * Sets the focus and exposure values * Closes the shutter * Clears the sensor buffer, switches the sensor to image capture mode * Closes down the aperture * Operates the shutter * Copies the sensor buffer to the image processing buffer * Resets the aperture to fully open * Reopens the shutter * switches the sensor back to live acquisition mode Godfrey, We had quite a debate about this way back on the dpreview Minolta talk forum. I initially said that the A2 had a shutter, arguements to the contrary convinced me that there was no shutter. Others said if you look down the lens you can see the shutter, again this was dismissed as being the aperture mech. Further arguement to support the no shutter theory was that the A1 and A2 could do flash synch at full shutter speeds, that is up to 1/4000th sec. -- Peter Williams
Impulse Buy, 24/2.8 Sigma AF
Could't pass this up for the price. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=7506096375 Looks to be the same vintage as 2 Sigma zooms I have which are quite good lenses. Anyone have any experience with this one? Of course it's 'broken' (AF noise), but that's what I do, I fix stuff! ;-) Don
RE: Pentax ist DS shutter.
-Original Message- From: Rob Studdert [mailto:[EMAIL PROTECTED] OK, I submit to your superior knowledge (and distinct lack of tact). I feel like it is me who lacks tact, not Godfrey. -- Peter Williams
Re: Battery Management
I have two sets of NiMH batteries, the Powerex 2200 type that topped the Imaging-Resource tests. They are amazing. Absolutely worth the money and highly recommended. I keep one set in the ist-D and one set as backup. I also have a set of Lithium CRV3 batteries in the bag in case of emergency but frankly, I've rarely needed to switch to the second set of NiMH so I've never come close to needing the lithiums. Get the Powerex 2200's and be happy :) -- Mark Roberts Photography and writing www.robertstech.com
Re: Pentax ist DS shutter.
Peter Williams [EMAIL PROTECTED] wrote: Further arguement to support the no shutter theory was that the A1 and A2 could do flash synch at full shutter speeds, that is up to 1/4000th sec. I don't know whether or not the A2 has a shutter, but the flash sync probably doesn't make a difference: If it does have a shutter it's most likely a leaf shutter so it could flash sync at high speed. -- Mark Roberts Photography and writing www.robertstech.com
Re: Pentax ist DS shutter.
Don Sanderson [EMAIL PROTECTED] wrote: Bottom line is that everyone's correct, it just depends on which generation/type of technology is being referred to. Don, I'm really disappointed that you of all people would take this attitude. There's only one way to answer this question for certain: Where's your screwdriver?* g * For Cotty, one can insert hacksaw in place of screwdriver -- Mark Roberts Photography and writing www.robertstech.com
RE: Pentax ist DS shutter.
I have the screwdriver (and hacksaw AND Dremel!), do you need my address to send the subject (victim) to? ;-) Don -Original Message- From: Mark Roberts [mailto:[EMAIL PROTECTED] Sent: Sunday, April 10, 2005 8:02 AM To: pentax-discuss@pdml.net Subject: Re: Pentax ist DS shutter. Don Sanderson [EMAIL PROTECTED] wrote: Bottom line is that everyone's correct, it just depends on which generation/type of technology is being referred to. Don, I'm really disappointed that you of all people would take this attitude. There's only one way to answer this question for certain: Where's your screwdriver?* g * For Cotty, one can insert hacksaw in place of screwdriver -- Mark Roberts Photography and writing www.robertstech.com
Best mid-speed 70/80-200/210 AF zoom?
I have several 70/80-200/210 zooms in the F/4-5.6 range for autofocus. All of them have their strengths and weaknesses. Some are good at the short end and poor at the long end. Others are just the opposite. The ATX 80-200/2.8 is fantastic but it's large, heavy and manual focus. The F70-210/4-5.6 is good when it wants to be but I get inconsistent results with it, both exposure and image quality wise. **What is your favorite mid-range zoom?** TIA Don
Re: Pentax ist DS shutter.
Don Sanderson [EMAIL PROTECTED] wrote: I have the screwdriver (and hacksaw AND Dremel!), do you need my address to send the subject (victim) to? ;-) Alas, I have no PS digital. Someone else will have to do the honorable thing. -- Mark Roberts Photography and writing www.robertstech.com
Re: Battery Management
Thanks to all who replied - looks like I should fire up the charger! I still have the original batteries that camera with the *ist-D, which I suppose are lithium. there are just 2 batteries, each on filling two AA slots. Those are my backups - though I should probably use them before they get too old and put some lithiums in the bag as a backup. - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Alan P. Hayes [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Saturday, April 09, 2005 9:05 PM Subject: Re: Battery Management I usually just charge whatever I can and not worry about the fine points. Don't use a flash. switch to lithiums. Lately, I've been having batteries quit on me that I thought were charged, which is a nuisance even if you tend to carry a lot of batteries. I made one interesting discovery due to this recently though. All of my rechargeables had pooped out on me so I went looking for some disposables so I could keep shooting. I generally get the lithium AAs which really last pretty well. this time all I could find were alkalines so I got the fanciest ones they had (why not?) and was pleasantly surprised when I got around 150 shots out of them. I'm wondering if the istD has the low voltage cutout situation you here about with some other cameras.
Re: Battery Management
From: Alan P. Hayes [EMAIL PROTECTED] I get the impression that a lot of what people describe as memory problems are really just out and out battery damage due to overheating and probably other stuff. I have an Energizer 30 minute charger. The batteries are HOT when they come out - they won't physically burn your fingers, but they are too hot to comfortably hold in your hand. I bought this a couple of years ago to replace an older Rayovac charger that took about 8 hours to charge up a set of NMHi batteries. Unfortunately the Rayovac was damaged when a battery leaked inside of it. I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem? Thanks - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - -
SMC Pentax-A 2.8/28mm - like new
There's one of these up for auction on a Danish auction site. I suspect it won't go very high. Ending April 18th. Currently 20 USD. I've already got one. Anybody intested? Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt -Oprindelig meddelelse- Fra: Mark Cassino [mailto:[EMAIL PROTECTED] Sendt: 10. april 2005 16:19 Til: pentax-discuss@pdml.net Emne: Re: Battery Management From: Alan P. Hayes [EMAIL PROTECTED] I get the impression that a lot of what people describe as memory problems are really just out and out battery damage due to overheating and probably other stuff. I have an Energizer 30 minute charger. The batteries are HOT when they come out - they won't physically burn your fingers, but they are too hot to comfortably hold in your hand. I bought this a couple of years ago to replace an older Rayovac charger that took about 8 hours to charge up a set of NMHi batteries. Unfortunately the Rayovac was damaged when a battery leaked inside of it. I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem? Thanks - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - -
Re: OT: Hard-copy enablement
On Apr 10, 2005, at 1:36 AM, Cotty wrote: Like most printers, use it at least once a week to counter ink drying out in the head(s). I have a Canon S9000 that I bought used and eventually had to replace the head, which was only about 75 GBP and an easy swap. It's such a good printer that for me it was worth it. I used to have this problem with the Epson 1270: leave it two weeks and then try to print and the heads would take five or six cleanings. The HP 7960 has yet to clog a nozzle in similar use, and the Epson 1270 (now that it runs MIS UT2 QuadTone inks) hasn't clogged in a year. Godfrey
Re: Battery Management
Hi Mark, Those batteries that came with the camera are 3CV lithiums, and they won't get too old for another eight or nine years. They're great as backups. Paul On Apr 10, 2005, at 10:11 AM, Mark Cassino wrote: Thanks to all who replied - looks like I should fire up the charger! I still have the original batteries that camera with the *ist-D, which I suppose are lithium. there are just 2 batteries, each on filling two AA slots. Those are my backups - though I should probably use them before they get too old and put some lithiums in the bag as a backup. - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Alan P. Hayes [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Saturday, April 09, 2005 9:05 PM Subject: Re: Battery Management I usually just charge whatever I can and not worry about the fine points. Don't use a flash. switch to lithiums. Lately, I've been having batteries quit on me that I thought were charged, which is a nuisance even if you tend to carry a lot of batteries. I made one interesting discovery due to this recently though. All of my rechargeables had pooped out on me so I went looking for some disposables so I could keep shooting. I generally get the lithium AAs which really last pretty well. this time all I could find were alkalines so I got the fanciest ones they had (why not?) and was pleasantly surprised when I got around 150 shots out of them. I'm wondering if the istD has the low voltage cutout situation you here about with some other cameras.
Re: Battery Management
Generally, high temps are a problem only if they cause the batteries to vent, but a cooling fan is a good precaution. If you have a fan from an old computer, it will make a perfect charging fan. If you don't have one, you can pick one up at Radio Shack. Just position it to blow on the batteries while they charge. NIMH batteries won't last three years. They're usually goners after about two years. Paul On Apr 10, 2005, at 10:18 AM, Mark Cassino wrote: From: Alan P. Hayes [EMAIL PROTECTED] I get the impression that a lot of what people describe as memory problems are really just out and out battery damage due to overheating and probably other stuff. I have an Energizer 30 minute charger. The batteries are HOT when they come out - they won't physically burn your fingers, but they are too hot to comfortably hold in your hand. I bought this a couple of years ago to replace an older Rayovac charger that took about 8 hours to charge up a set of NMHi batteries. Unfortunately the Rayovac was damaged when a battery leaked inside of it. I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem? Thanks - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - -
Re: Battery Management
At 9:24 PM -0700 4/9/05, David Oswald wrote: I do have a quick question for the Lithium AA people. The manual for my *ist-DS states that Lithium AA's aren't recommended for the *ist-DS. Is that a warning I should take seriously? What's the issue? Dave Really? I just took a look at the PDF version of the Ds manual I downloaded during the camera shopping phase and it says Li AAs are cool in two different places, pp.26 191. -- Alan P. Hayes Meaning and Form: Writing, Editing and Document Design Pittsfield, Massachusetts Photographs at http://www.ahayesphoto.com/americandead/index.htm
Re: Battery Management
Those are lithium batteries, CRV3s. As someone mentioned, lithiums have an extremely long shelf life, up to 10 years. I haven't used the ones that came with my D either though I've used one set of the Lithium AAs with this camera. Of course, now I'm not sure where they are! The only real drawbacks to Lithiums are the expense and the fact that they can be a little hard to get out in the field. The AAs, at least, are probably cheaper per shot than any other disposables. They don't stop in the cold, either. At 10:11 AM -0400 4/10/05, Mark Cassino wrote: Thanks to all who replied - looks like I should fire up the charger! I still have the original batteries that camera with the *ist-D, which I suppose are lithium. there are just 2 batteries, each on filling two AA slots. Those are my backups - though I should probably use them before they get too old and put some lithiums in the bag as a backup. - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Alan P. Hayes [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Saturday, April 09, 2005 9:05 PM Subject: Re: Battery Management I usually just charge whatever I can and not worry about the fine points. Don't use a flash. switch to lithiums. Lately, I've been having batteries quit on me that I thought were charged, which is a nuisance even if you tend to carry a lot of batteries. I made one interesting discovery due to this recently though. All of my rechargeables had pooped out on me so I went looking for some disposables so I could keep shooting. I generally get the lithium AAs which really last pretty well. this time all I could find were alkalines so I got the fanciest ones they had (why not?) and was pleasantly surprised when I got around 150 shots out of them. I'm wondering if the istD has the low voltage cutout situation you here about with some other cameras. -- Alan P. Hayes Meaning and Form: Writing, Editing and Document Design Pittsfield, Massachusetts Photographs at http://www.ahayesphoto.com/americandead/index.htm
Re: Battery Management
Mark, I don't know squat about batteries, especially these newer types, however, I recall reading somewhere that rapidly charging a battery is not the ideal way to recharge, and that doing so can shorten battery life. IAC, it's always been my impression that a slower charge is better for longevity. I just wonder if there's any truth to that, or if there ever was. That said, the rechargeable lithium ion bats that are in the various Sony cameras that I've used have lasted a very long time years, actually. The bat on my first camera lasted three or four years before finally getting to the point where it wouldn't hold a charge for a long time, and the bats in my current Sony, which are at least two years old, are still going strong. In both instances the charging process used is on the slow side, taking about four hours or so to fully recharge. Shel [Original Message] From: Mark Cassino From: Alan P. Hayes I get the impression that a lot of what people describe as memory problems are really just out and out battery damage due to overheating and probably other stuff. I have an Energizer 30 minute charger. The batteries are HOT when they come out - they won't physically burn your fingers, but they are too hot to comfortably hold in your hand. I bought this a couple of years ago to replace an older Rayovac charger that took about 8 hours to charge up a set of NMHi batteries. Unfortunately the Rayovac was damaged when a battery leaked inside of it. I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem?
Small enablement
Got a Metz 60-33 Reflex Screen, new, off ebay for appr. 50USD incl. shipping: http://tinyurl.com/5od5g This is one of the things that could NOT be found by searching ebay worldwide. I searched Germany exclusively! Now I can shoot with softer light from my Metz-hammerheads (GN 45 or 60). :-)) And one more thing. I got the wireless remote radio flash trigger from joesphotoauction2000.net for the camera club studio - gets current supply from the AC cord to the strobe. Transmitter has a 12V 23 A battery. Works perfectly! Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt
Re: Pentax ist DS shutter.
On Apr 10, 2005, at 4:59 AM, Peter Williams wrote: We had quite a debate about this way back on the dpreview Minolta talk forum. I initially said that the A2 had a shutter, arguements to the contrary convinced me that there was no shutter. Others said if you look down the lens you can see the shutter, again this was dismissed as being the aperture mech. Further arguement to support the no shutter theory was that the A1 and A2 could do flash synch at full shutter speeds, that is up to 1/4000th sec. There is no reason to debate this. It is a fact, not an opinion. The sensor operates in two modes ... one where the image buffer is refreshed under software control without operation of the shutter used for focusing, framing and video capture, and another one which is used with the shutter for still image capture. You can see the shutter operate quite clearly: Set lens to full telephoto Set exposure to manual Set shutter speed to Bulb Set aperture to wide open Use a penlight with a narrowly focused beam and shine it down the lens Operate the shutter button. You'll see the shutter close, reopen, close again, then reopen. If you set the aperture to anything other than wide open, you'll also see the operation of the aperture mechanism ... whether the shutter implements the aperture or not I'm not entirely sure, but it is a quite common design in modern leaf shutters used in this sort of camera. The reason the A2 can perform flash sync at 1/4000 second is that it is a leaf shutter design: there is a point in the operation of a leaf shutter that all blades are fully open at all shutter speeds. (At 1/4000 second, the total exposure may be less than the time the flash unit's tube is illuminated ... typically you need to pick a sync speed which holds the blades' fully open position for anywhere from 1/250-1/1000 second to obtain the full power of higher powered electronic flash units or studio strobes. For partial power, however, 1/4000 is adequate since most autoflash units have a flash duration range from around 1/250 to 1/10,000 sec.) Godfrey
Re: Battery Management
Frantisek wrote: Sunday, April 10, 2005, 6:24:18 AM, David wrote: DO NiMH batteries do self-discharge relatively rapidly; even moreso than DO NiCads. Fortunately, they don't have as much of a memory issue as DO NiCds. They do take several charge-discharge cycles to reach their DO fullest capacity though. In all I have read about batteries, it seems to me that the memory effect is not real, except in very controlled laboratory conditions. The loss of capacity most people describe to memory effect is just bad charging technique, overcharging, too rapid charging for the battery and similar faults. At least that's how I understand it :) Also caused by overdischarging of batteries - that is, those that are made up of groups of cells. This can lead to one cell becoming partly reverse polarised and damaged, reducing its capacity. This is another thing to be thankful to Pentax for. AA cells are not susceptible to this - all the proprietary (= expensive) batteries are. Good light! fra
Re: Pentax ist DS shutter.
On Apr 10, 2005, at 2:53 AM, Don Sanderson wrote: From what I was able to see my Olympus C5050 simply stopped down and captured the image. With the aperture wide open I could see the sensor thru the lens the whole time the exposure was being made. At no time did the iris close. The 5050 is a prosumer grade, far from a simple camera. ... The Olympus C5050 indeed does have a mechanical shutter. I borrowed one for a short time and had a C8080WZ for a while. Both have a mechanical leaf shutter. Both also support interline transfer for motion capture. One of my points of curiosity about any camera is to see the shutter operate ... If you shine a light down the lens and watch you can see it operate; you can also hear it (with all the stupid shutter emulation sounds turned off, of course ;-). Sometimes it is a little hard to see since the iris and shutter mechanisms in these cameras is so small. Bob's statement is not entirely correct and somewhat misleading. Just because SLR sensors do not have interline transfer mode and require a shutter does not imply that small sensor camera CCDs use interline transfer for all exposure timing operations. Godfrey
RE: PESO:Another Sunset with Wires
Looks like there's a new way of capturing sunsets on the PDML ... ;-)) Actually, I like the concept, although neither your photo nor Bruce's did very much for me. However, the idea of showing the reality of city or urban environments rather than trying to avoid them, or eliminate them with Photoshop trickery, is a rather refreshing approach. One quick comment: the birds in the background are very distracting, and diminish somewhat the distraction and annoyance caused by the wires. Lose the birds LOL == Don Sanderson wrote: Stepped outside to call the dogs and saw this: http://www.donsauction.com/pdml/Sunset.htm Ran back in and grabbed the D with K35/2 and had time for two quick shots before it was gone. I too wish the wires weren't there but who knows, maybe someone will think they make a statement. ;-) Don
Re: Battery Management
I find that I don't trust my own anecdotal evidence much when it comes to rechargeable batteries. That said, different chargers and different batteries definitely vary quite a bit in terms of how much heat they generate when charging. I've had a couple of sets that appeared to have gotten fried by chargers, not before getting a reasonable amount of use out of them, fortunately. I'm using a Lightning Pack 4000 from RipVan100 which seems pretty good, and definitely shuts off if the batteries start to overheat. You have to restart the charger manually when they do! This is the only reasonably systematic discussion of how actual chargers perform that I've found. http://www.crypto.com/chargers/ At 10:18 AM -0400 4/10/05, Mark Cassino wrote: From: Alan P. Hayes [EMAIL PROTECTED] I get the impression that a lot of what people describe as memory problems are really just out and out battery damage due to overheating and probably other stuff. I have an Energizer 30 minute charger. The batteries are HOT when they come out - they won't physically burn your fingers, but they are too hot to comfortably hold in your hand. I bought this a couple of years ago to replace an older Rayovac charger that took about 8 hours to charge up a set of NMHi batteries. Unfortunately the Rayovac was damaged when a battery leaked inside of it. I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem? Thanks - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - -- Alan P. Hayes Meaning and Form: Writing, Editing and Document Design Pittsfield, Massachusetts Photographs at http://www.ahayesphoto.com/americandead/index.htm
RE: Battery Management
-Original Message- From: mike wilson [mailto:[EMAIL PROTECTED] We do the same thing, except we number our sets. We must have at least 8 sets of four NiMHs. We have both a fast charger and an overnight charger that does more than just AAs. I've found that I can't use alkalines in the D. I got maybe 15 shots off a set the one time I had to use them. (Of course, they could have been bad batteries; I got them at a newsstand. :) This seems to be a common failing with alkalines. Even in the lowly Optio, you will only get half a dozen or so from a set of good name batteries, that then go on to provide loads of light in a flash. Another joy of digital 8-) mike Very true. My little Optio 230 didn't like alkalines either. I had to buy the other kind of battery instead (forget which one; Olympus made the commonly-available ones). They were much more expensive but lasted quite a long time. Amita
Re: Battery Management
Thanks, Paul - that's good to hear. They'll stay as backups for a while then! - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Paul Stenquist [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Sunday, April 10, 2005 10:40 AM Subject: Re: Battery Management Hi Mark, Those batteries that came with the camera are 3CV lithiums, and they won't get too old for another eight or nine years. They're great as backups. Paul On Apr 10, 2005, at 10:11 AM, Mark Cassino wrote: Thanks to all who replied - looks like I should fire up the charger! I still have the original batteries that camera with the *ist-D, which I suppose are lithium. there are just 2 batteries, each on filling two AA slots. Those are my backups - though I should probably use them before they get too old and put some lithiums in the bag as a backup. - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Alan P. Hayes [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Saturday, April 09, 2005 9:05 PM Subject: Re: Battery Management I usually just charge whatever I can and not worry about the fine points. Don't use a flash. switch to lithiums. Lately, I've been having batteries quit on me that I thought were charged, which is a nuisance even if you tend to carry a lot of batteries. I made one interesting discovery due to this recently though. All of my rechargeables had pooped out on me so I went looking for some disposables so I could keep shooting. I generally get the lithium AAs which really last pretty well. this time all I could find were alkalines so I got the fanciest ones they had (why not?) and was pleasantly surprised when I got around 150 shots out of them. I'm wondering if the istD has the low voltage cutout situation you here about with some other cameras.
Re: 300mm enabled
On Sun, 10 Apr 2005 12:47:58 +1000, Rob Studdert wrote: [...] I can't understand for the life of me why they didn't provide a removable lens mount on the FA300/4.5 :-( That's why I waited for an F* 300/4.5 to show up. It took a while, but I _really_ like the tripod mount on the F* version of the lens. Plus, I only paid around $6-700 for it a couple of years ago. The cost of a 300/2.8 equates to a good chunk of my annual motor racing budget, so that ain't likely to happen. :-) TTYL, DougF KG4LMZ
Re: Battery Management
high temps will ruin the NiMH batteries. it will greatly shorten the life. this is part of why ultra-fast chargers are bad for them too. they heat up more than the slower chargers. Herb... - Original Message - From: Mark Cassino [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Sunday, April 10, 2005 10:18 AM Subject: Re: Battery Management I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem?
Re: Pentax ist DS shutter.
Taking Godfrey's suggestion, it's clear that my little Sony Cybershot DSC-S85 has a shutter. I can hear it as well as see it. With other cameras, YMMV. Shel [Original Message] From: Godfrey DiGiorgi On Apr 10, 2005, at 4:59 AM, Peter Williams wrote: We had quite a debate about this way back on the dpreview Minolta talk forum. I initially said that the A2 had a shutter, arguements to the contrary convinced me that there was no shutter. Others said if you look down the lens you can see the shutter, again this was dismissed as being the aperture mech. Further arguement to support the no shutter theory was that the A1 and A2 could do flash synch at full shutter speeds, that is up to 1/4000th sec. [snip] You can see the shutter operate quite clearly: Set lens to full telephoto Set exposure to manual Set shutter speed to Bulb Set aperture to wide open Use a penlight with a narrowly focused beam and shine it down the lens Operate the shutter button. You'll see the shutter close, reopen, close again, then reopen. If you set the aperture to anything other than wide open, you'll also see the operation of the aperture mechanism ...
RE: PESO: Tree Cuddles Lamppost
Hi Don, On Sat, 9 Apr 2005 09:21:15 -0500, Don Sanderson wrote: Neat shot Doug, must be one of those Leafus Nurturus trees! ;-) Thanks, Don. I've been watching that shot develop since the middle of last summer, as the tree grew around the lamppost and the ?fern? below it. I don't know why, but it catches my eye every time I walk past it. Camera does a great job. The only problem I'm having with it is that it's so small and so light, I have a really hard time keeping it still for hand holding longer exposures. So much so that I've dug out my little desktop tripod. I mainly got it for snapshots and getting photos for eBay ads, though, so this isn't a big problem. TTYL, DougF KG4LMZ
Re: Hello and Sensor cleaning
Hi Alan Welcome. There are a few of us living in Ma., though most of us are East. Unfortunately, we are not as organized as other geographic areas, so there is no MPDML yet. Toronto, D.C., N.Y.C., S.F., and a few other areas have informal groups that occasionally get together. I've been on the list for a few years now and have found it a wealth of knowledge in almost any subject imaginable. Butch
Re: OT: Hard-copy enablement
Godfrey DiGiorgi wrote: On Apr 10, 2005, at 1:36 AM, Cotty wrote: Like most printers, use it at least once a week to counter ink drying out in the head(s). I have a Canon S9000 that I bought used and eventually had to replace the head, which was only about 75 GBP and an easy swap. It's such a good printer that for me it was worth it. I used to have this problem with the Epson 1270: leave it two weeks and then try to print and the heads would take five or six cleanings. The HP 7960 has yet to clog a nozzle in similar use, and the Epson 1270 (now that it runs MIS UT2 QuadTone inks) hasn't clogged in a year. To me, while the Canon S820 was good enough while it worked, it's not so good that I wouldn't ever replace it. As for putting it through six cleanings, I've put it through at least a dozen deep cleaning cycles, and several more regular cleaning cycles, plus swabbed it with alcohol a few times, and rubbed it with a damp cloth. There's been no improvement whatsoever. When I looked up replacement heads, they were around $100. For $200, I get a new printer, new heads, and heads that get replaced every time I replace the ink. I know the consumables are more expensive with HP, but after this experience, I am ok with that too.
Re: PESO: Tree Cuddles Lamppost
Hi Cotty, On Sat, 9 Apr 2005 15:38:52 +0100, Cotty wrote: In celebration of finally getting a digital of some sort, here's my first PESO. http://www.nutdriver.org/IMGP0038.html Doug Does Digital ;-) Well, technically, I've been scanning my film and doing my own inkjet prints for a couple of years. :-) But it is different to be able to pull the shots straight out of the camera, instead of having to drop off film and wait for it. Nice one mate. Like it. Thanks. Where I work, we've got a little green space between the buildings that we smokers use and that people can go to just to relax and think (it's a software company). This shot was taken in that little area, where there are a couple of those red trees, whatever the heck they are. It's remarkably quiet and relaxing for being only 200m from the motorway. :-) TTYL, DougF KG4LMZ
Re: First Macro Stuff
Nice shot of the ladybug, Boris - is looks to be quite sharp and the DOF is just right. I'm not familiar with the Tamron - I assume the 2x adapter lets you go to 2x lifesized? - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Boris Liberman [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Saturday, April 09, 2005 2:43 PM Subject: First Macro Stuff Hi! Well, the poppies are still blooming. Galia so much wanted to have a photo of ladybug (if you see the pic and I am mistaken in English, please correct me)... So I took my tripod, attached a 2x matching converter to my Tamron 90/2.5 SP and headed to the field... http://www.flickr.com/photos/boris71/8902760/ Also, while on the field, we've been attacked by the rather known flying objects... Though I cannot identify these objects with any degree of certainty... This time, my Tamron 90/2.5 SP was without the converter... http://www.flickr.com/photos/boris71/8902759/ Comments are welcome, as usual. Boris
Re: PESO: Tree Cuddles Lamppost
Hi Bruce, On Sat, 9 Apr 2005 08:22:54 -0700, Bruce Dayton wrote: DF http://www.nutdriver.org/IMGP0038.html Well, I like it. The colors go nicely together the composition shows off the tree quite well. What kind of tree is that, anyway? Beats the heck out of me. The only think I know less about than horticulture is women. ;-) There are a couple of more of those trees in the little green space where this shot was taken. Here are some more shots of it, including details of the leaves, if that will help with identification. http://www.NutDriver.org/IMGP0037.jpg http://www.NutDriver.org/IMGP0039.jpg http://www.NutDriver.org/IMGP0040.jpg http://www.NutDriver.org/IMGP0041.jpg http://www.NutDriver.org/IMGP0042.jpg Nice work with your first digital! Thank you. It's a scene that catches my eye every time I go by it. TTYL, DougF KG4LMZ
Re: PESO: Tree Cuddles Lamppost
Hi Boris, On Sat, 09 Apr 2005 20:46:40 +0200, Boris Liberman wrote: http://www.nutdriver.org/IMGP0038.html I should say that this very photo leaves me indifferent. I neither dislike it nor really like it. Well, I didn't really expect it to be universally appealing, since I'm not quite sure what about it appeals to me. :-) It might be a personal thing. But that view catches my eye every time I walk by it, for some reason. Although, somehow it seems to me you will be shooting much more now... Probably. The cost is only part of it. The other part is not having to mess around with dropping off and picking up the film, and dealing with scanning it myself. I suspect the Optio is going to drive me to get a DSLR sooner than I would have. :-) TTYL, DougF KG4LMZ
RE: A bit OT: Stones in My Pathway
On Sun, 10 Apr 2005 07:32:48 +0200, Jens Bladt wrote: It must be the season for trading 300mm lenses. There's two F 4.5 and one FA 4.5 up at ebay at the moment. If I didn't already have one, I'd jump all over one of those Fs. TTYL, DougF KG4LMZ
Re: Battery Management
Maybe I'll add a slow charger to stable and only use the fast one when I need to - though the fan idea sounds interesting as well (I have a small fan any I can use.) - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - - - Original Message - From: Herb Chong [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Sunday, April 10, 2005 11:28 AM Subject: Re: Battery Management high temps will ruin the NiMH batteries. it will greatly shorten the life. this is part of why ultra-fast chargers are bad for them too. they heat up more than the slower chargers. Herb... - Original Message - From: Mark Cassino [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Sunday, April 10, 2005 10:18 AM Subject: Re: Battery Management I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem?
Re: Speaking of inexpensive PS
On Sun, 10 Apr 2005 05:34:12 -0400, Bill Owens wrote: [...] Pentax Optio 50 [...] 5MP, 1.8 inch LCD, SD slot and uses AA batteries (2). [...] Cost is $197.00 US, pretty reasonable for a 5MP IMHO. Pretty annoying since I just spent almost a hundred bucks more for the S5i. TTYL, DougF KG4LMZ
Re: PESO - Gobsmacking Light
On Sun, 10 Apr 2005 05:28:13 +0100, mike wilson [EMAIL PROTECTED] wrote: Boris Liberman wrote: Hi! Just writing some emails before dinner, raining outside, noticed the trees over in the east were suddenly glowing crimson. Wandered over into the kitchen to look west, and saw this scene. I dashed back and grabbed the 1D, attaching the SMC-A*85mm f/1.4 as I walked outside and into the rain - carpet slippers onto the grass, and rattled off 9 shots. This at ISO 320, 1/125 @ f/5.6, handheld. 3 deg of rotation, slight crop, no alterations to colour ( used auto levels in PS, with standard USM) - I swear to God, this is as I saw it. Only lasted another 2 minutes and it was gone. http://www.cottysnaps.com/snaps/spare5.html I was told that swearing shouldn't be done in public... You know, the bAd words? :) Cotty, you seem to have outdone yourself... Now, be a good chap, and explain to me what is it gobsmacking? Who is gob and why it should be smacking or smacked? Not who, what. Gob is slang for mouth. So gobsmacked means hit in the mouth. In other words, rendered speechless. Not polite but a common term for something that astonishes. So people who talk too much are said to be gobby. It's found more oop Nawff than dan Saff. John -- Using Opera's revolutionary e-mail client: http://www.opera.com/m2/ -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 07/04/2005
OT: photo paper for Xerox Phaser 8400
Does anybody have experience with the Xerox Phaser 8400 colour printer ? The recommended high res photo paper is Phaser Professional Solid Ink High Resolution Photo Paper. I'm going to order a package to try it out, but it's not easily available here in Halifax NS. Any recommendations for other papers ? Thanks, Jim. www.jcolwell.ca
Re: First Macro Stuff
Hi! Nice shot of the ladybug, Boris - is looks to be quite sharp and the DOF is just right. I'm not familiar with the Tamron - I assume the 2x adapter lets you go to 2x lifesized? No, Mark, you're quite wrong. It is very simple. The lens itself is 90/2.5 that can go only 1:2 lifesize. With adaptor it becomes 180/5 (which is way cool on its own right) that gives 1:1 reproduction ratio. I should say that this Tamron dedicated flatfield 2x teleconverter seems to work better than Vivitar 2x macro focusing teleconverter... But then of course, it could be that the lens and the converter were designed to match. This shot is rather tight crop. But because of the rest of the frame being rather smooth, I am going to try to print this at least 20x30 (cm of course) and see how digital fares this time. Boris
Re: Speaking of inexpensive PS
- Original Message - From: Bill Owens Subject: Speaking of inexpensive PS Earlier this week my Optio S decided to stop working. We also recently received a shipment of the Pentax Optio 50. It's not listed on the Pentax website, and is apparently built for sale through national accounts such as Wal-Mart. Anyway, it's 5MP, 1.8 inch LCD, SD slot and uses AA batteries (2). Although I haven't installed the software yet, it can also be used as a webcam for those that use them, I don't. Cost is $197.00 US, pretty reasonable for a 5MP IMHO. Damn. Now We are going to kill Pentax.. William Robb
Re: Cheap digital PS
- Original Message - From: Bill Owens Subject: Cheap digital PS The Wally World where I work has just received a shipment of 3MP PS digital cameras. I haven't seen any results yet, but the specs are pretty impressive for a $60.00 digital. It has 16MB of internal memory, 1.5 inch LCD screen and an SD card slot. We've sold a few to parents for their younger children. We're getting something similar. Prone to failure, and you really want to check out the image quality. William Robb
Re: Best mid-speed 70/80-200/210 AF zoom?
- Original Message - From: Don Sanderson Subject: Best mid-speed 70/80-200/210 AF zoom? **What is your favorite mid-range zoom?** I use an FA77/1.8 or an M150/3.5, and I zoom with my feet. William Robb
Re: Small enablement
- Original Message - From: Rob Studdert Subject: RE: Small enablement On 10 Apr 2005 at 12:47, Peter Williams wrote: I have never, ever *got* colour IR. I have shot and loved the BW IR film, but just cannot for the life of me enjoy the results of the colour stuff. BW colour IR films are technical films, however they have artistic appeal to some. There's nothing really to get, it's just like cross processing of slides, some people like it, some don't, different horses... I used to shoot Ektachrome IR film for fun. (I think it was still E-2 process or some such) with an orange filter. It was pretty funky. William Robb
Re: Battery Management
I have a lot of experience with nicads from the days when my son and I raced electric radio control cars. Slow charging would give you maximum run time. However, fast charging delivered maximum amperage, which is what we were after. We charged at 6 amps until the battery voltage peaked. Then just before setting the car down on the track, we would peak the batteries once more. We kept a cooling fan on them all the time, but they still got very warm. Some of the very serious factory-backed racers used to go to the starting line with a push cart that held their battery charger and power supply. They would keep the charger in place until the last possible second. After a race, the batteries would be connected to a device that virtually shorted them out. It provided about 1.5 ohm resistance on a dead short circuit. This drained the batteries in seconds. This device was also used to condition new batteries, to teach them to discharge quickly at very high amperage. Those factory racers would sometimes discard a set of batteries after only a few five minute races, because they lost their ability to deliver peak voltage and high amperage in a hurry. It wasn't unusual to cause cells to vent while charging. After that, they were toast. There was one series where maximum run time was important because the heats were longer. For that kind of racing, slow overnight trickle charging was the order of the day. I don't know if any of this applies to nimh batteries, but I slow charge mine. Paul On Apr 10, 2005, at 10:52 AM, Shel Belinkoff wrote: Mark, I don't know squat about batteries, especially these newer types, however, I recall reading somewhere that rapidly charging a battery is not the ideal way to recharge, and that doing so can shorten battery life. IAC, it's always been my impression that a slower charge is better for longevity. I just wonder if there's any truth to that, or if there ever was. That said, the rechargeable lithium ion bats that are in the various Sony cameras that I've used have lasted a very long time years, actually. The bat on my first camera lasted three or four years before finally getting to the point where it wouldn't hold a charge for a long time, and the bats in my current Sony, which are at least two years old, are still going strong. In both instances the charging process used is on the slow side, taking about four hours or so to fully recharge. Shel [Original Message] From: Mark Cassino From: Alan P. Hayes I get the impression that a lot of what people describe as memory problems are really just out and out battery damage due to overheating and probably other stuff. I have an Energizer 30 minute charger. The batteries are HOT when they come out - they won't physically burn your fingers, but they are too hot to comfortably hold in your hand. I bought this a couple of years ago to replace an older Rayovac charger that took about 8 hours to charge up a set of NMHi batteries. Unfortunately the Rayovac was damaged when a battery leaked inside of it. I've been tossing NiHI that are in the 3 year old range - they won't take a charge from the energizer charger. It's hard to say how much use they get since they have been used in the *ist-D, CoolPix 990, and lots of flashes. But could the high temps of the charger be a problem?
Re: Best mid-speed 70/80-200/210 AF zoom?
Hi! I have several 70/80-200/210 zooms in the F/4-5.6 range for autofocus. All of them have their strengths and weaknesses. Some are good at the short end and poor at the long end. Others are just the opposite. The ATX 80-200/2.8 is fantastic but it's large, heavy and manual focus. The F70-210/4-5.6 is good when it wants to be but I get inconsistent results with it, both exposure and image quality wise. **What is your favorite mid-range zoom?** Mine is the one that gives you inconsistent results. I find it quite excellent. I had Soligor 70-222/3.5 C/D that was very heavy. Though I don't think Soligor was sharper than Pentax... And it had this sandy bokeh - very odd... I've seen Jostein's Sigma 70-200/2.8 EX that is huge compared to F70-210... In fact, me so thinks that in mid-speed 70-200 zoom category you cannot get the lens that has no weaknesses. May be it would be a time for you to move to fast f2.8 glass... Or you can buy some primes in the focal lengths you use most... Just my pennies. Boris
Re: Battery Management
Hi! Let say you have not shot your *ist-D or flashes for 6 weeks. You have several sets of NiMH batteries. You know that the now stale batteries will poop out quickly in your *ist-D, but will probably hold their own in a flash unit. You can use NiMH in Pentax flashes? You really can? Like AF 220T can take NiMHs? That's new to me. You decide to go out shooting, but for all you know, youll wind up with no shots using either the DSLR or the flash Do you --- 1 Recharge everything; after all, the batteries are stale I would recharge the batteries I knew were dead. I wouldn't care for memory effect. 2 Drain everything and then recharge to eliminate any possible memory assuming (of course) that your charger does not already drain and charge. I don't think that potential loss of capacity due to memory can make or break my day... 3 Recharge a couple set of batteries for the camera, let the other drain out in the flash and recharge the later. No, but then again I did not know about 1. above. 4 Stop worrying and just shoot, replace the batteries as needed, and if you come up short at the end of the day, switch to film Sometimes I take my MZ-6 with my just for such occasion. So should I fire up the charger? Start draining batteries, or just stop worrying? The last option is the most viable to me :). Just charge the suckers as necessary. I have two sets of GP batteries at 2000 and 2300 MAh that I use. I also bought a set of Minwa (noname, I suppose) 2300 MAhs that I've put in my wireless keyboard, which probably wasn't too good an idea after all. When I go for a shoot where I know I may run out of juice I would charge one set full (the other is in the camera). I would also take with me the batteries that came with the camera - the disposables... So far, I've been left batteryless only once (Jostein can attest to this) and since then I've learned at least some of the lesson. Just my cents... Boris
Z-5 and Z-5p???
I just picked up my Pentax poster from the Post Office (thank you Stan!), and it is great--though l-a-r-g-e, and goodness knows where I'll put it (my wife has already vetoed the living room and bedroom). Anywa Z-5 and Z-5p are depicted; they look a lot like the Z-1 and Z-1p. I've never heard of them, though. What were they? Rick __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Philly PDMLers?
What other PDML subscribers are in the Philadelphia area? I hereby volunteer to organize a gathering in July. (I know it's a bit early, but I need to arrange my on-call weekends pretty soon). Contact me off-list if interested. We'll try to find a consensus weekend. Rick __ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/
Re: Battery Management
MC But could the high temps of the charger be a problem? I think so. Of course the cells could be nearing their lifecycle limit, too. IMHO cells should never be hot in the charger, either becauses it charges them too rapidly or it is a closed lid charger without good venting. It shortens their life. RC models people superquickcharge their cells at insane currents, but they also usually use industrial grade batteries which are more permissive, expensive chargers with computer connection and conditioning and they are all insane anyway ;-) Good light! fra
Pentax Digital Spotmeter baffles - DIY
Hi, I have just acquired the little PDS to use with my meterless Leica. What a gem! I thought of getting a Sekonic L408 (with ambient light reading too), but I found this used one first (and cheaply). And I can use it in the dark too, unlike the Sekonic which doesn't have any display light. I ask for some repair (more like modding) tips please. Now, the best PDS are ZoneVII modified, I heard here. But I will be mostly using it for BW, where the slight colour inaccuracy of any unmodified meter isn't so critical. However, it does have one lack - the internals are still quite reflective. I tried shining a bright LED lamp into it (not operating of course) and though the lens has SMC, the metal insides are not flocked/baffled well. I thought of modifying it myself adding better baffling or painting it with more light-sucking paint (I have already had the analog spotmeter V open for repair, including the lens). I want to ask what would be best for baffling and flocking the interior. There are two circular baffles, which are unfortunately painted with not-that-darkhole-black paint. And also the huge chamber housing the prism is painted in a sort of semi-gloss paint (which does cause reflections). It is very good even now, but I would like it to get better with glare resistance. Perhaps paint is not good enough - I have this self-adhesive flocking paper that really sucks light like a black hole, or perhaps some black velur type cloth could be used. I have used the flocking paper in my Pentacon Six (now THAT's a shiny mirror chamber - painted _glossy_ gray!) with great success, but it does have some amount of the material coming of as fine dust. Do you think this could pose a problem in the spotmeter? It shouldn't get on the sensor should it? After all the metering cell is probably cemented onto the prism, and the area I want to flock is well before the prism. Also, are there any pitfals disassembling this unit? The Spotmeter V was very easy to open, but I still wanted to ask first. Many thanks! Frantisek
Re: Impulse Buy, 24/2.8 Sigma AF
DS Anyone have any experience with this one? DS Of course it's 'broken' (AF noise), but that's what I do, I fix stuff! ;-) Yep I had one in Nikon AF mount. The mechanics are horrible (but you already saw it yourself, probably). It makes a grinding sound during AF even when new, and the focus helicoid or AF gears can get torn down pretty fast. OTOH, it was very sharp. Not that flare resistant, so use a hood. Interestingly, the second sample I had came from a friend photojournalist, who abused it in Middle East and Russia and elsewhere for about 8 years. Most of the paint came off, the AF was sluggish, it had fallen on stones many many times, but it still worked, and even resolved details well! The extruding rear element metal baffle was completely dinged from all the falls, but it did protect the glass well. So apart from the AF gears, it's a pretty tough lens. I didn't use it in AF because I feared it could damage the camera's motor. Yep, even the lens barrel is completely metal (although it is coated with black rubber coating, this coating was almost nonexistend on my lens g). The only bad quality issue with this lens is the AF, in my opinion. Some here on the list said that it resolves better than the FA*2/24mm (even on film). Good light! fra
Re: Hello and Sensor cleaning
Sunday, April 10, 2005, 5:28:27 AM, David wrote: DS Hey I do that (sometimes). But it's more in the hope that the dust DS will fall out g I wouldn't do that! Aren't you afraid that the poor little pixels will fall out too? You can't buy them dime a'dozen in the grocery store, you know... :) Good light! fra
Film writers (digi to neg, digi to slide)
Hi, as sacrilegous as it is to me, I have some BW conversions from digital which I would really like to have as fiber BW prints (e.g. the frontpage photograph on my website). I am not much keen on printing them on Frontier (even though the new 370 offers 600 DPI, it is still only 8-bit output) or inkjet. I recall somebody (Godfrey?) talking a while back about using laser film writers to output the negative for platinum printing. The same could be perhaps used to produce a tweaked 35mm negative for traditional BW printing (no one yet here in Prague has the new Durst digital enlarger, which could be great for it, as it looked very promising, and _very_ expensive, although one pro printer mentioned thinking about getting one...). Anybody has any pointers or hints or experience with this? Thanks a lot! Frantisek
RE: Pentax Digital Spotmeter baffles - DIY
The Zone VI (Not Zone VII) modification was done primarily for BW photography. Shel [Original Message] From: Frantisek Now, the best PDS are ZoneVII modified, I heard here. But I will be mostly using it for BW, where the slight colour inaccuracy of any unmodified meter isn't so critical.
Re: Cheap digital PS
- Original Message - From: Bill Owens Subject: Cheap digital PS The Wally World where I work has just received a shipment of 3MP PS digital cameras. I haven't seen any results yet, but the specs are pretty impressive for a $60.00 digital. It has 16MB of internal memory, 1.5 inch LCD screen and an SD card slot. We've sold a few to parents for their younger children. We're getting something similar. Prone to failure, and you really want to check out the image quality. Hi Guys Is this the Apex (300?) by any chance? We had them for Xmas. Basically a OTUC body with a digital sensor and an SD slot. Good for a cheap camera for a young kid, not much else. The Pentax 50 sounds interesting though. Let us know any initial impressions or problems. Butch
PESO: More Loco Photos
A few weeks ago I posted a few shots of the Union Pacific Big Boy steam engine being moved to it's new location. Yesterday they moved one of the few remaining Centennial diesel-electric locomotives to the same location. The Centennials were the largest diesels ever built. With the exception of wind, the weather was great. Here are a few of the photos I took while spending a couple of hours following it along it's move. There are three short videos mixed among the still photos. They are marked. If you're on a dial up line or other slow connection you'll want to just skip to the next photo. They are about 7 to 8 megabytes each. By the way. The videos were taken with the OptioMX. They were shot in Mpeg-4 and converted to Mpeg-1 for the web. I really like it for this type of thing. It slips easily into a lens pocket in the camera bag. The short videos can record a bit of the atmosphere that doesn't come across well in the stills. You can get about 20 minutes of the highest quality video on a 512 Mb SD card. The stills were all shot with the istD and the 16-45mm lens. Both sets of photos are here: http://georges.smugmug.com/Street+Scenes See you later, gs -- George Sinos Papillion, NE e-mail: [EMAIL PROTECTED] Web: http://georgesoptions.net Photos: http://georgesphotos.net --
Re: PESO - Gobsmacking Light
John Forbes wrote: On Sun, 10 Apr 2005 05:28:13 +0100, mike wilson [EMAIL PROTECTED] wrote: Boris Liberman wrote: Hi! Just writing some emails before dinner, raining outside, noticed the trees over in the east were suddenly glowing crimson. Wandered over into the kitchen to look west, and saw this scene. I dashed back and grabbed the 1D, attaching the SMC-A*85mm f/1.4 as I walked outside and into the rain - carpet slippers onto the grass, and rattled off 9 shots. This at ISO 320, 1/125 @ f/5.6, handheld. 3 deg of rotation, slight crop, no alterations to colour ( used auto levels in PS, with standard USM) - I swear to God, this is as I saw it. Only lasted another 2 minutes and it was gone. http://www.cottysnaps.com/snaps/spare5.html I was told that swearing shouldn't be done in public... You know, the bAd words? :) Cotty, you seem to have outdone yourself... Now, be a good chap, and explain to me what is it gobsmacking? Who is gob and why it should be smacking or smacked? Not who, what. Gob is slang for mouth. So gobsmacked means hit in the mouth. In other words, rendered speechless. Not polite but a common term for something that astonishes. So people who talk too much are said to be gobby. It's found more oop Nawff than dan Saff. There's another, extremely rude version that denotes a person as completely untrustworthy, such that all they say is excrement. mike
Re: Z-5 and Z-5p???
See here http://kmp.bdimitrov.de/bodies/Z-PZ/index.html Very rare IMO On Apr 10, 2005 7:34 PM, Rick Womer [EMAIL PROTECTED] wrote: I just picked up my Pentax poster from the Post Office (thank you Stan!), and it is great--though l-a-r-g-e, and goodness knows where I'll put it (my wife has already vetoed the living room and bedroom). Anywa Z-5 and Z-5p are depicted; they look a lot like the Z-1 and Z-1p. I've never heard of them, though. What were they? Rick __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- -- Thibouille -- Z1,SuperA,KX,MX,P30t and KR-10x ...
Re: PESO: More Loco Photos
George Sinos wrote: A few weeks ago I posted a few shots of the Union Pacific Big Boy steam engine being moved to it's new location. Yesterday they moved one of the few remaining Centennial diesel-electric locomotives to the same location. The Centennials were the largest diesels ever built. Excellent documetation, George. Interesting to see the different modes of dress, from people wrapped up against what they percieve as a cold day, to the videocamerawoman in shorts and t-shirt. For whatever reason, the videos won't play inline for me, on this or the Big Boy page. Any chance of a link to the URLs, so that I can download them? mike
Re: OT: Hard-copy enablement
Shut it off atthe printer. Kenneth Waller -Original Message- From: Cotty [EMAIL PROTECTED] Sent: Apr 10, 2005 4:36 AM To: pentax list pentax-discuss@pdml.net Subject: Re: OT: Hard-copy enablement On 9/4/05, David Oswald, discombobulated, unleashed: Anyone have any comments or tips for this printer? Like most printers, use it at least once a week to counter ink drying out in the head(s). I have a Canon S9000 that I bought used and eventually had to replace the head, which was only about 75 GBP and an easy swap. It's such a good printer that for me it was worth it. Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _ PeoplePC Online A better way to Internet http://www.peoplepc.com
Re: Pentax Digital Spotmeter baffles - DIY
Sunday, April 10, 2005, 8:06:11 PM, Shel wrote: SB The Zone VI (Not Zone VII) modification was done primarily for BW SB photography. Ok, so it's great for BW as well, I give up :) I should have known it's VI... VII is just too bright - I put caucasian faces at VI. Anyway, I am more interested in some tips on the baffles, and this list I think is a good place to ask. Last I heard Zone _VI_ was out of business, no? Good light! fra
Re: OT: photo paper for Xerox Phaser 8400
On Sun, 10 Apr 2005 13:17:34 -0300, Jim Colwell wrote: Does anybody have experience with the Xerox Phaser 8400 colour printer ? The recommended high res photo paper is Phaser Professional Solid Ink High Resolution Photo Paper. I'm going to order a package to try it out, but it's not easily available here in Halifax NS. Any recommendations for other papers ? Thanks, Jim. www.jcolwell.ca Jim, We had one of this type of printer at work (an earlier model). It gave good results but the ink was glossy. If you didn't use the glossy paper the white would be mat and the colours glossy - a strange result. The packages they sold here had the black ink being free for the life of the printer, but you paid for the colour ink. Leon http://www.bluering.org.au http://www.bluering.org.au/leon
Re: Film writers (digi to neg, digi to slide)
- Original Message - From: Frantisek Subject: Film writers (digi to neg, digi to slide) Anybody has any pointers or hints or experience with this? A friend of mine has a high end Leaf writer. I'll ask him if it is set up and running. William Robb
RE: SMCT 135/2.5 results
As a matter of course, I try to use the longest, deepest hood that won't vignette. Shel The ST 300/5.6 hood is a very long 58mm one. It may fit the 135mm on an ist D. Andre
RE: SMCT 135/2.5 results
How long is that hood? It'll probably work just fine with the D, but it may also work well with a regular slr. Shel [Original Message] From: Andre Langevin As a matter of course, I try to use the longest, deepest hood that won't vignette. The ST 300/5.6 hood is a very long 58mm one. It may fit the 135mm on an ist D. Andre
Re: Battery Management
I'm mostly a type 4 kinda guy in this case. In addition, I keep a set of lithiums in my bag for those cases when I run out of power. I've had the same set of spares for a good 7 months now, but lithiums have long shelf life. Jostein - Original Message - From: Mark Cassino [EMAIL PROTECTED] To: pentax-discuss@pdml.net Sent: Sunday, April 10, 2005 2:37 AM Subject: Battery Management A question about how to best manage NiMH Batteries. Let say you have not shot your *ist-D or flashes for 6 weeks. You have several sets of NiMH batteries. You know that the now stale batteries will poop out quickly in your *ist-D, but will probably hold their own in a flash unit. You decide to go out shooting, but for all you know, youll wind up with no shots using either the DSLR or the flash Do you --- 1 Recharge everything; after all, the batteries are stale 2 Drain everything and then recharge to eliminate any possible memory assuming (of course) that your charger does not already drain and charge. 3 Recharge a couple set of batteries for the camera, let the other drain out in the flash and recharge the later. 4 Stop worrying and just shoot, replace the batteries as needed, and if you come up short at the end of the day, switch to film Just wondering, as these last several Michigan weeks have afforded me few digital photo ops. Ive managed to get some interesting shots of the Michigan wilderness in early spring, but those are more grim than cheery and better suited for BW film than digital. So should I fire up the charger? Start draining batteries, or just stop worrying? - MCC - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, MI www.markcassino.com - - - - - - - - - - - - - - - - - - - -
Re: Pentax ist DS shutter.
Quoting Mark Roberts [EMAIL PROTECTED]: I don't know whether or not the A2 has a shutter, but the flash sync probably doesn't make a difference: If it does have a shutter it's most likely a leaf shutter so it could flash sync at high speed. I agree that it would have to be a leaf, not focal plane shutter, but then what leaf shutter can offer speeds like 1/4000th sec? It just all seems a bit funny to me. This email was sent from Netspace Webmail: http://www.netspace.net.au
Beware of camera
http://www.popphoto.com/article.asp?print_page=ysection_id=4article_id=877page_number=1preview= Short fun article some of you may have read before. Pentax makes a brief appearance too (unfortunately). Enjoy! Cheers, Ryan
Re: Pentax ist DS shutter.
Quoting Godfrey DiGiorgi [EMAIL PROTECTED]: The reason the A2 can perform flash sync at 1/4000 second is that it is a leaf shutter design: there is a point in the operation of a leaf shutter that all blades are fully open at all shutter speeds. What leaf shutter is able to work at 1/4000th sec? How come all the leaf shutter lenses/cameras are usually limited to 1/500th? This email was sent from Netspace Webmail: http://www.netspace.net.au
Re: Pentax ist DS shutter.
The problem with leaf shutters on standard cameras has to do with size and mass, and, of course, acceleration. Such shutters are much larger and heavier than the shutters on the small digicams. At some point the larger shutters are unable to maintain accurate shutter speeds. This has often been determined to be @ 1/500 second, although many users of cameras with leaf shutters suggest that even 1/500 second is often slow and not close enough to be accurate. I have heard of people using the 1/500 speed as 1/350 when they are looking for very accurate exposures. Shel [Original Message] From: [EMAIL PROTECTED] What leaf shutter is able to work at 1/4000th sec? How come all the leaf shutter lenses/cameras are usually limited to 1/500th?
Re: Battery Management
Hi What exactly is considered a slow charge versus a quick? I have a Radio Shack charger that takes 7 hours to fully charge. The batteries never get beyond slightly warmer then ambient. I'm thinking of getting a charger we sell at work that's a 2 hour charger, because it also has a car adapter. Is that still considered a slow charger? We also sell a 15 minute charger that I have no interest in. Butch
Re: Beware of camera
Woo Hoo! I have both of the two most dangerous Pentax cameras... CW Anybody wana come paint this room? Two coats of white primer in the kids room and it's STILL pink... Ugh - Original Message - From: Ryan Lee [EMAIL PROTECTED] To: PDML pentax-discuss@pdml.net Sent: Sunday, April 10, 2005 6:16 PM Subject: Beware of camera http://www.popphoto.com/article.asp?print_page=ysection_id=4article_id=877page_number=1preview= Short fun article some of you may have read before. Pentax makes a brief appearance too (unfortunately). Enjoy! Cheers, Ryan -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005
