J. C. O'Connell <[EMAIL PROTECTED]> wrote: > Are you guys talking about usage on 35mm (FF) or APS > digital? > jco
I am talking about APS digital... Bruce, after checking more carefully the shots and making a few more I have something more accurate to say about the sharpness of the two: the 35-105 seems to be better wide open and stopped down 1-1,5 stops (I made many of the first comparison shots at f/4,5) especially in the corners. Stopping down the 24-90 more than the 35-105 by at least 1/2 stop brings to *almost* similar results. (the 24-90 is slower, so the amount of stops to have a comparable sharpness is similar, but you are nevertheless using a slower aperture...) The 24-90 is a IF lens, so the focal lenght varies when focusing (at 90mm it should be a true 90mm only at infinity, so you lose a lot of reach when you focus closer - to match the fov of the 24-90mm at 90 focused at 50cm I had to set the 35-105 at around 75mm). Another thing, the 24-90 at 35 is truly a 35mm and definitely wider than the 35-105 at 35... The 35-105 starts at something like 38mm, if not more (40mm?) IMO the 35-105 may behave on APS digital as a great portrait zoom, when you have the time to focus and choose the appropriate focal lenght. The 24-90 may be not the ultimate performer, but is probably more useful (for me as a PJ, for sure) when you're in a hurry. Ciao, Gianfranco _ ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
