With all the discussion lately on the "scientific" approach to exposure/development control, (see what you started, Steve?), I was wondering... Do those of you who use a fairly formal system such as the Zone System or BZTS do separate calibrations for different lenses?
I use quite a few different lenses, from 19th century rectilinears to modern multi-coated lenses, and find (of course) that the contrast varies greatly (!) between them. Different light can significantly change the behavior of a single lens, especially with older uncoated optics prone to flare under harsher illumination.
I often hear of re-testing for a new film or developer, yet I never hear comments on doing separate testing for different lenses. Is this commonly done?
(BTW, my name keeps switching to "William Mortenson" on these posts. Whoever's doing that, cut it out!)
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