I'm a lot more impressed with the A28 then I expected from the reviews I've read. Still can't touch the M28/3.5 though I don't think.
I'm quite surprised at your shots. Overall I'd rate the F ahead of the FA and just behind the M, very hard to beat the M50/1.7 for sharpness. I don't know how the 17-28 would do, I've never seen one. I do know the Zenitar 16/2.8 shows a lot less fisheye effect on the D than on full frame. As a matter of fact if I'm careful one might not know it was a fisheye. Don > -----Original Message----- > From: Jens Bladt [mailto:[EMAIL PROTECTED] > Sent: Monday, April 04, 2005 4:15 PM > To: [email protected] > Subject: RE: (Hey Jens) Pentax-A 2.8/28mm > > > Your shot looks very nice and sharp, Don. Even in the > corners/edges. Amazing > clouds! > I've been studying my test shots a little closer. (I tested all my lenses > wide open and at f2.8 - f4- f5.6 and f8 - all the talk about the Limited > lenses started this). The Tamron Adaptall 28mm has better/higher contrast, > thus appears to be sharper. But the A 2.8/28mm actually render better > resolution/richness of distinguishable detail. I guess a lens maker > considers the Pentax-A 2.8/28mm a better lens, even though it appears less > sharp/contrasty. So, for low contrast subjects I may use the Tamron. Where > high resolution/fine detail and subtle colours is required, I'll use the > Pentax, which actually is a nice walk-around lens for the *ist D. > I'm glad I > finally got the focusing helicoids adjusted :-) > > There's a SMC Pentax-F 17-28mm Fisheye f/3.5-4.5 up for auction > at ebay (USA > only). Would this give a lot of distortion on a "D", do you think? I have > become increasingly fond of F-lenses. They are really better > built than they > look. I only have two and one AF adapter. They just work and work > and work. > And seem a lot better, than the rather toyish design suggests! > > Look at the 50mm range of the F 4-5.6/35-80mm (@ F4 and > F5.6)comparede to FA > 1.4/50mm and M 1.7/50mm: > http://gallery37564.fotopic.net/p13454735.html > > All the best > > Jens Bladt > mailto:[EMAIL PROTECTED] > http://hjem.get2net.dk/bladt > > > -----Oprindelig meddelelse----- > Fra: Don Sanderson [mailto:[EMAIL PROTECTED] > Sendt: 4. april 2005 21:27 > Til: [email protected] > Emne: RE: (Hey Jens) Pentax-A 2.8/28mm > > > Here's a sample from the A28/2.8 on Superia 400. > This was saved for web at 800x540 from a store > scan of 1800x1215. > Some nice clouds from the other day, shows the > flare resistance of the A28. > No filter or hood. > At either 5.6 or 8. > > http://www.donsauction.com/pdml/Clouds.htm > > Don > > > -----Original Message----- > > From: Jens Bladt [mailto:[EMAIL PROTECTED] > > Sent: Sunday, April 03, 2005 5:04 PM > > To: [email protected] > > Subject: RE: Pentax-A 2.8/28mm > > > > > > hanks, Don. Yhe A 2.8/28mm doesn't look that bad, considered a half stop > > difference. > > Regards > > Jens > > > > Jens Bladt > > mailto:[EMAIL PROTECTED] > > http://hjem.get2net.dk/bladt > > > > > > -----Oprindelig meddelelse----- > > Fra: Don Sanderson [mailto:[EMAIL PROTECTED] > > Sendt: 3. april 2005 22:00 > > Til: [email protected] > > Emne: RE: Pentax-A 2.8/28mm > > > > > > The K seems highly regarded, I have been looking for one. > > Don't know about the 24. > > > > Here's a sample from the A 28/2.8 against the 3.5: > > http://tinyurl.com/4axt4 > > > > Don > > > > > -----Original Message----- > > > From: Jens Bladt [mailto:[EMAIL PROTECTED] > > > Sent: Sunday, April 03, 2005 11:47 AM > > > To: [email protected] > > > Subject: RE: Pentax-A 2.8/28mm > > > > > > > > > Thanks, Don. I'm looking forward to you rtests. > > > Do you know how well the Pentax-K 2.8/28mm is rated? > > > Or the Pentax-M 2.8/24mm ? > > > > > > Jens Bladt > > > mailto:[EMAIL PROTECTED] > > > http://hjem.get2net.dk/bladt > > > > > > > > > -----Oprindelig meddelelse----- > > > Fra: Don Sanderson [mailto:[EMAIL PROTECTED] > > > Sendt: 3. april 2005 16:07 > > > Til: [email protected] > > > Emne: RE: Pentax-A 2.8/28mm > > > > > > > > > That's cool Jens! > > > I'll be testing the A 28/2.8 against the M 28/3.5 if I get time > > > today. I hope mine is a good as yours. > > > The A 28 doesn't have a very good reputation for sharpness, > > > yours seems to do quite well. > > > > > > Don > > > > > > > -----Original Message----- > > > > From: Jens Bladt [mailto:[EMAIL PROTECTED] > > > > Sent: Sunday, April 03, 2005 8:58 AM > > > > To: [email protected] > > > > Subject: RE: Pentax-A 2.8/28mm > > > > > > > > > > > > I just remembered, that when I repaired this lens (the focus > > > helicoid was > > > > out of proper adjustment), the front lens(es) were loose. I > > didn't check > > > > their position and just tightened the front lens element. > > > > > > > > So, just now I took the front lenses (two) out again, cleaned > > > them and put > > > > them back. This time I made sure they were firmly seated are > > > > supposed to be. > > > > Bingo! Now my test results for this lens are much better :-) > > > > > > > > http://gallery37564.fotopic.net/p13386584.html > > > > > > > > > > > > Jens Bladt > > > > mailto:[EMAIL PROTECTED] > > > > http://hjem.get2net.dk/bladt > > > > > > > > > > > > -----Oprindelig meddelelse----- > > > > Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > > > Sendt: 3. april 2005 09:15 > > > > Til: [email protected] > > > > Emne: Re: Pentax-A 2.8/28mm > > > > > > > > > > > > Jens > > > > Hard to tell from my monitor,but these were taken froam recently > > > > purchased A > > > > 28 f2.8. > > > > Althought i have not printed any out yet,they look good to me on > > > > the screen. > > > > > > > > > http://photobucket.com/albums/v408/divad_b/Wagg%20Road%20Open%202005/ > > > > > > > > Dave > > > > > > > > > Is this lens realy this > > > > bad or is it just mine? > > > > > Se test shots: > > > > > http://gallery37564.fotopic.net/p13380532.html > > > > > > > > > > Scroll down and aclick Full Size to closer examine > > > > > > > > > > This is at F. 2.8 > > > > > Click next to see F. 4 and F. 5.6 > > > > > Comments are welcome. > > > > > > > > > > Jens Bladt > > > > > mailto:[EMAIL PROTECTED] > > > > > http://hjem.get2net.dk/bladt > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
