Re: How to calculate depth of field?

[Michel Wurtz <mw@xxxxxxx>]

Jason Revell wrote:

> however it states that in most cases use 0.036mm for 35mm film and 0.056mm
> for 120 roll film.

I allways believed that C is related to the film resolution, so it
should not be the same with Kodachrome 25 and Kodak HIE : you don't
need the same accuracy with a very fine grain film and a monstruosly
grainy film, allthough you can see some difference even with a grainy
film... so i used to take 0.02 mm for Kodachrome and 0.05 for HIE in
35 mm _and_ roll film

--
Michel Wurtz
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