Re: Good normal lens for the *ist-en?
NC From: Jarek Dabrowski[EMAIL PROTECTED] NC Could you tell more about Sigma 24/1.8 performance (sharpness, and flare NC control) ? Have you used it on a full-frame SLR ? I tried it out on film few years ago. Wide open it was nothing stellar. Also, wide open it has less relative transmission than stopped down, thus the real T stop (f stop but defined as actual light reaching the film, not theoretical amount of f stop) was slightly less than 1.8, it was more like f/2.3 lens. but used at 2.8 it wasn't bad if I remember. It didn't impress me on the whole when I compared it to such superb lenses as AIS Nikkor 2.8/24 I was using. I never owned a Pentax 24mm lens, though, so I can't compare it to these, but the 2.8 versions are said to be excellent as well. However, from my limited experience with it, if you are looking for super-fast lens for film or digital body, the wide aperture isn't usable anyway, so you might be quite better either with 2.8/24 from Pentax (or for cheaper, the 2.8/24 Sigma which was optically better than the later 1.8 in my opinion). Standard disclaimer: Your mileage may vary. Lens testing and comparisons between different people are a minefield of subjectivity. All above comments are my opinion and may apply only to the samples I actually tried out, not to all lenses of that type. ;-) Good light! fra
Re: Good normal lens for the *ist-en?
The Sigma is very good for sharpness and very little vignetting. I have used it on an MZ-S and projected the resulting slide to 6' to good effect. You do have to watch out for flare and general contrast reduction when shooting into a bright light source, and it's essential to use the suppliee lens hood. It has a very large focussing ring and a good feel for manual focus. You have to slide the ring to disengage the AF, and also use the switch on the body. It was my most used lens on a trip to Dorset and Devon in the summer, but since I got the 24mm f/2.8 A it has seen little use. It's just that much bigger (the price for the fast aperture I suppose). I might ebay it in the new year. A very good lens though. Nick -Original Message- From: Jarek Dabrowski[EMAIL PROTECTED] Could you tell more about Sigma 24/1.8 performance (sharpness, and flare control) ? Have you used it on a full-frame SLR ?
Re: Good normal lens for the *ist-en?
On Dec 1, 2004, at 8:32 PM, Nick Clark wrote: The Sigma is very good for sharpness and very little vignetting. I have used it on an MZ-S and projected the resulting slide to 6' to good effect. You do have to watch out for flare and general contrast reduction when shooting into a bright light source, and it's essential to use the suppliee lens hood. It has a very large focussing ring and a good feel for manual focus. You have to slide the ring to disengage the AF, and also use the switch on the body. Bother, and I just let one of these go for about $30 today!!! Bother, bother! Well, I do want to add a thank you to all who replied. I've got a lot of options and I'm loaded for bear now :-) -- -Jon Glass Krakow, Poland [EMAIL PROTECTED]
RE: Good normal lens for the *ist-en?
I use the Pentax 24mm f/2.8 SMC-A lens. I did use the Sigma 24mm f/1.8 before I got the Pentax, but prefer the compact size of the Pentax. I used mainly manual focus with the Sigma anyway, so don't miss the AF. I tend to take at least the 14mm f/2.8 DA and the 50mm f/1.4 SMC-A as well if I'm out and about, and often a few more. Nick -Original Message- From: Jon Glass[EMAIL PROTECTED] Sent: 29/11/04 07:11:47 What would make a good normal lens for an *istD or *istDS?
Re: Good normal lens for the *ist-en?
Although I've used only primes in the past, the DA 16-45 has become my normal lens as of late. The only downside is it's lack of speed. When I need something faster in the middle of that range, I use an M 35/2. On Nov 29, 2004, at 2:11 AM, Jon Glass wrote: What with all the recent discussion on best lenses, etc. I've been wondering What would make a good normal lens for an *istD or *istDS? I'm not looking of best but what lenses made by Pentax would give a good image, comparable to something like 50/1.4 or 50/1.7? What wide angle lenses would make good replacements For reference, I'm not thinking AF, but rather something older, even screw-mount. To confess, the more I think of adapting an ancient screw-mount lens to digital, the more intriguing it sounds. :-) (partly the beauty of putting such an ancient lens on such modern technology, partly just the challenge of it, and only lastly price.) :-) In this case, I suppose, the more the merrier, not the _one_ best. :-D -- -Jon Glass Krakow, Poland [EMAIL PROTECTED]
Re: Good normal lens for the *ist-en?
I have this neat little photo calculator on my system called fCalc. When I compare diagonal angle of view of APS vs 35mm the 40mm is almost an exact replacement for a 50mm in AOV so I would guess the 43mm would be your best bet. If you believe fCalc that is. If you use the standard 1.5x multiplier suggested by everyone else then You'd be looking for either the FA 35f2 or the A 35f2 as these translate to the equivalent of 52mm. I doubt this helps however. You can get fCalc at http://www.tangentsoft.net/ as I've said it's a neat program. Jon Glass wrote: What with all the recent discussion on best lenses, etc. I've been wondering What would make a good normal lens for an *istD or *istDS? I'm not looking of best but what lenses made by Pentax would give a good image, comparable to something like 50/1.4 or 50/1.7? What wide angle lenses would make good replacements For reference, I'm not thinking AF, but rather something older, even screw-mount. To confess, the more I think of adapting an ancient screw-mount lens to digital, the more intriguing it sounds. :-) (partly the beauty of putting such an ancient lens on such modern technology, partly just the challenge of it, and only lastly price.) :-) In this case, I suppose, the more the merrier, not the _one_ best. :-D -- 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: Good normal lens for the *ist-en?
- Original Message - From: Jon Glass Subject: Good normal lens for the *ist-en? What with all the recent discussion on best lenses, etc. I've been wondering What would make a good normal lens for an *istD or *istDS? I'm not looking of best but what lenses made by Pentax would give a good image, comparable to something like 50/1.4 or 50/1.7? What wide angle lenses would make good replacements For reference, I'm not thinking AF, but rather something older, even screw-mount. To confess, the more I think of adapting an ancient screw-mount lens to digital, the more intriguing it sounds. :-) (partly the beauty of putting such an ancient lens on such modern technology, partly just the challenge of it, and only lastly price.) :-) FA31/1.8 A35/2 Both work very well. William Robb
Re: Good normal lens for the *ist-en?
What would make a good normal lens for an *istD or *istDS? A lot depends, of course, on what each individual considers to be a normal focal length. For the 35mm format, while the common normal FL is considered to be 50mm, some like 55mm better, and there are some who like 77mm or 85mm, while some like 40mm, 35mm, or 31mm. Add in (or multiply by, I guess) the APS cropping factor, and you'd also get quite a range of APS normal focal lengths. Fred
SV: Good normal lens for the *ist-en?
...should be divide by crop factor, right! Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt -Oprindelig meddelelse- Fra: Fred [mailto:[EMAIL PROTECTED] Sendt: 29. november 2004 16:14 Til: Jon Glass Emne: Re: Good normal lens for the *ist-en? What would make a good normal lens for an *istD or *istDS? A lot depends, of course, on what each individual considers to be a normal focal length. For the 35mm format, while the common normal FL is considered to be 50mm, some like 55mm better, and there are some who like 77mm or 85mm, while some like 40mm, 35mm, or 31mm. Add in (or multiply by, I guess) the APS cropping factor, and you'd also get quite a range of APS normal focal lengths. Fred
Re: Good normal lens for the *ist-en?
Nick Clark wrote: I use the Pentax 24mm f/2.8 SMC-A lens. I did use the Sigma 24mm f/1.8 before I got the Pentax, but prefer the compact size of the Pentax. I used mainly manual focus with the Sigma anyway, so don't miss the AF. Could you tell more about Sigma 24/1.8 performance (sharpness, and flare control) ? Have you used it on a full-frame SLR ? Thanks in advance, Jerry
Re: SV: Good normal lens for the *ist-en?
Add in (or multiply by, I guess) the APS cropping factor, and you'd also get quite a range of APS normal focal lengths. ...should be divide by crop factor, right! Oops - yes, that's quite right, Jens. Thanks for catching me in one of my senior moments - g. Fred
Re: Good normal lens for the *ist-en?
Add in (or multiply by, I guess) the APS cropping factor, and you'd also get quite a range of APS normal focal lengths. ...should be divide by crop factor, right! Oops - yes, that's quite right, Jens. Thanks for catching me in one of my senior moments - g. Fred
RE: Good normal lens for the *ist-en?
I suppose a normal lens today is a zoom lens, meaning normally on the body for casual shooting. For the Pentax *ist D (APS-C format) I suppose it's something like the SMC Pentax 16-45mm F4 ED AL, although a little slow for my taste. I guess my choice would be something like the Sigma 2.8/18-50 DC (equal to something like 28-75mm for 35mm) as the normal lens (I haven't got/tried it yet, though...). It's priced very similar to the Pentax 16-45mm. Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt -Oprindelig meddelelse- Fra: Fred [mailto:[EMAIL PROTECTED] Sendt: 29. november 2004 19:41 Til: [EMAIL PROTECTED] Emne: Re: Good normal lens for the *ist-en? Add in (or multiply by, I guess) the APS cropping factor, and you'd also get quite a range of APS normal focal lengths. ...should be divide by crop factor, right! Oops - yes, that's quite right, Jens. Thanks for catching me in one of my senior moments - g. Fred
Good normal lens for the *ist-en?
What with all the recent discussion on best lenses, etc. I've been wondering What would make a good normal lens for an *istD or *istDS? I'm not looking of best but what lenses made by Pentax would give a good image, comparable to something like 50/1.4 or 50/1.7? What wide angle lenses would make good replacements For reference, I'm not thinking AF, but rather something older, even screw-mount. To confess, the more I think of adapting an ancient screw-mount lens to digital, the more intriguing it sounds. :-) (partly the beauty of putting such an ancient lens on such modern technology, partly just the challenge of it, and only lastly price.) :-) In this case, I suppose, the more the merrier, not the _one_ best. :-D -- -Jon Glass Krakow, Poland [EMAIL PROTECTED]
RE: Good normal lens for the *ist-en?
I guess the one comparable to 50/1.4 or 1.7 will be the FA31/1.8LE and the FA35/2 Andy PS: BTW I'm getting my DS tonight...vbg -Original Message- From: Jon Glass [mailto:[EMAIL PROTECTED] Sent: Monday, November 29, 2004 3:12 PM To: [EMAIL PROTECTED] Subject: Good normal lens for the *ist-en? What with all the recent discussion on best lenses, etc. I've been wondering What would make a good normal lens for an *istD or *istDS? I'm not looking of best but what lenses made by Pentax would give a good image, comparable to something like 50/1.4 or 50/1.7? What wide angle lenses would make good replacements For reference, I'm not thinking AF, but rather something older, even screw-mount. To confess, the more I think of adapting an ancient screw-mount lens to digital, the more intriguing it sounds. :-) (partly the beauty of putting such an ancient lens on such modern technology, partly just the challenge of it, and only lastly price.) :-) In this case, I suppose, the more the merrier, not the _one_ best. :-D -- -Jon Glass Krakow, Poland [EMAIL PROTECTED]
RE: Good normal lens for the *ist-en?
On 29 Nov 2004 at 15:36, Andy Chang wrote: I guess the one comparable to 50/1.4 or 1.7 will be the FA31/1.8LE and the FA35/2 Or either of the 28/2 lenses. 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
