Have you try it out yourself? I'm happy to see it. On the other hand I
have over 20 different Zuikos, I think they are all not world class so
I cannot get anything close to 100lpmm even with tripod and flash, so
sad :-( I bet most of you can only get 40-50lpmm in 990f your photo,
don't believe? check it out yourself.
BTW, I'm not interested on using microfilm or Tech Pan for my works.
The closet to real life is Kodakchrome 25 and it only up to 86lpmm
with the best lens and under well controlled test condition. With
normal use (not spending minutes for focusing) and hand held it will
be much less.
C.H.Ling
"John A. Lind" wrote:
>
> See the following:
> http://people.smu.edu/rmonagha/mf/limits.html
>
> YMMV using some of the techniques there. Film can easily exceed optical
> limits. Rightly so. There is something to be said for other effects
> gained in having it this way. Very carefully done, it is possible to break
> the 100 lpmm "barrier." I believe the limits for the very best lenses (in
> resolving power) are at about 120 lpmm with some specific lenses at
> specific apertures capable of achieving perhaps 140 lpmm representing the
> BOB (best of the best, or World Class). Someone else posted remarks about
> seeing Shaw prints of magnificent size and extraordinary resolution. Shaw
> clearly understood how to extract the very best out of his equipment and
> film. While an overall image may not be able to produce this (from lack of
> sufficient contrast) regions with sharply defined high contrast edges
> will. Although an entire film frame may not deliver this level in a
> practical photograph (averaging above the 100 lpmm barrier), done properly
> it allows the optics and film system to "rise to the occasion" when
> contrast and edge sharpness provide the opportunity.
>
> -- John
>
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