Hi Mark:
> If you are limited by the film to be about 100 lp/mm resolution when
> in fact most 35mm lenses are far above this, then why are ANY lenses
> quoted in having less than 100 lp/mm resolution. Look at some of
> the numbers in the web pages linked to Lee Hawkins web site. Some
> lenses, wide open, are down around 50 lp/mm. This doesn't seem to
> make sense.
I'm not sure what is being asked here. But two comments which might help
clarify a restated question. One is that the contrast difference between the
original line pairs
is important. The higher the contrast, the easier it is for a lens to
resolve a difference. Second, aberrations come into play at wide apertures
and are the biggest factor in limiting the theoretical resolution which you
stated.
Gary Reese
Las Vegas, NV
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