Re: reciprocity and TMY film

From: I Zarkov <dr_izarkov_at_domain.name.suppressed>
Date: Wed 27 Feb 2002 - 14:21:32 PST

Guillermo,
Your persistence is admirable.
Yes TMY does need very much less compensation than my usual HP5+ as I found
out in trying to print bullet-proof 120mm film negs. I had to develop for
the general exposures on the roll and not the 300sec. exposures done inside
an almost completely darkened medieval chapel with just a glint of light
thru narrow windows.
Thanks for the url for the chart from Kodak. As it is, I have been plotting
the curve on an excel spread sheet for TMY and playing connect the dots.
Thanks for the reminder that it is indeed a curve and not a straight line.
And cheers for that AXIS OF EVIL: Hurter and Driffield, those demons of the
d log e curve.
Ishmael Zarkov

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Received on Wed Feb 27 13:48:35 2002

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