RolandRB wrote:

Peter said he was probably using 1/60th sec and possibly 1/30th so
assuming 1/60th sec then the picture should have looked sharp at the
size he was showing it and at 1/30th should not have looked as soft.
So at full aperture my suspicion is the focus is out between the
viewing lens and the taking lens and if you know these cameras then
this should be no surprise.


Something for me to re-check. I originally checked it with my 135mm, the
lens that is used least. I'll have to dig out the calculations but depth
of focus (ie at the film) does not depend on lens focal length. IIRC it is
something simple like 2*fstop*circle of confusion, but I need to check
that.

Pete

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