With a view to the future for those of us who extesively use the Kodak films which are about to be changed and will have different developing times, I have the following question for those of you who are photochemistry experts:(posted 8117 days ago)After finding a new developing time for, say, Normal Development for a specific film, say Tri-X Professional, is there any formula I can apply to arrive at my other development times that I have already calibrated for the older version of the film, e.g. N-1, N+1, etc.?
More specifically, would applying the same percentage of change to the other developing times get me in the ball park, or is their some kind of proportional relationship that needs to be applied, or is there no specific relationship at all (in which case all the calibrations will have to be done again from scratch!).
Thanks in advance for the expert input.
Regards, ;^D)
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