sort of, but there are far more lenses i have used only on the digital body
that i have no plans on using on a film body. i was hoping that the crop
factor's elimination of the corner softness and chromatic aberration would
improve the usefulness of my Sigma 15-30, but it didn't do it enough. either
i had a bad example or they were just generally not sharp in the corners at
any aperture. however, the crop factor made the strange grain that i have
noticed in the out-of-focus areas of all Sigma lenses i have used worse, so
i got rid of it. i figured that if i had to compromise on quality, i would
at least compromise with a focal length that Pentax didn't have, namely the
Sigma 12-24. i have seen the same effect in Canon mount versions of
different Sigma lenses than the ones i owned, so i know it's not a
Pentax-specific thing. i also see it sometimes in my Pentax 80-320, but only
at the long end. this effect occurs on film too, but since the magnification
to the print sizes i use most is less, it's less objectionable.
Herb....
----- Original Message -----
From: "William Robb" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, February 23, 2005 7:51 PM
Subject: Re: Manual Focus Pentax Glass on istD
<the line slides to move more lenses to the worse side when your judgment
is initially formed on the their film performance.
Have you ever had a lens move to the digital side?
