There is a film characteristics table at <http://cacreeks.com/films.htm>
wherein one can see that Johnny is correct. With very few exceptions,
all of the color films are rated at 63 lp/mm or lower with many in the
40-50 lp/mm range. The exceptions are Old Ektar/Royal 25 which is
listed at 80 lp/mm and Fuji Velvia which is also listed (by Fuji) at 80
lp/mm. A footnote below seems to say about Velvia that they don't
really believe the Fuji numbers.
The B&W numbers are higher but only the ISO 25 & 40 emulsions manage to
make it into the 80-90 lp/mm range.
Then, of course, "system" resolution is a function of both film and lens
and less than the minimum of either. There's some interesting
commentary on lens, film and system resolution, contrast and related
stuff at: <http://www.imx.nl/photosite/technical/highres.html>
The most interesting point I saw here was a Kodak "rule of thumb" that
says a lens has to have 3 times the resolution of the film to fully
exploit the emulsion. Computing system resolution with a lens having 3
times the film resolution gets you fairly close to the film resolution
as the final result.
Johnny Johnson wrote:
Even back when I shot Velvia and scanned it
> with a Polaroid SS4000 about the best resolution numbers I saw during
> lens tests were between 60 and 65 lpmm so I don't think film use is
> the answer either. Maybe Moose is right and it is more marketing
> hype than any kind of practical application.
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