Serge J-F. Levy
21-Oct-2006, 15:13
I am a little stumped here and wanted to see if any of the veteran LF users who are VERY particular could help me out.
Though I THINK the camera doesn't matter, I am using a sinar x.
I am having focusing problems with my lenses. For example, with my rodenstock 150 5.6 apo lens, I'm not getting TOTAL sharpness across the field of the lens even stopped down to 16 at infinity. The lack of sharpness isn't at the edges as one would expect, but seems to be blotchy (minimally blotchy, but nonetheless noticeable) almost. The lens is CRYSTAL clear (i.e. no dust), has never been dropped or damaged.
What could be the problem here?
Many thanks,
Serge
www.sergelevy.com
Though I THINK the camera doesn't matter, I am using a sinar x.
I am having focusing problems with my lenses. For example, with my rodenstock 150 5.6 apo lens, I'm not getting TOTAL sharpness across the field of the lens even stopped down to 16 at infinity. The lack of sharpness isn't at the edges as one would expect, but seems to be blotchy (minimally blotchy, but nonetheless noticeable) almost. The lens is CRYSTAL clear (i.e. no dust), has never been dropped or damaged.
What could be the problem here?
Many thanks,
Serge
www.sergelevy.com