I inherited a bunch of B&W film from my father that had been kept in the
refrigerator for years. Some had expiration dates in the late 80's. The
only emulsion that had a problem was Kodak's High Speed Infared, which
retained some IR capability but was really foggy. T-Max (100 & 400),
Tri-X, and Plus-X all worked fine. I still have a few rolls of Panatomic-X
and some Ilford emulsions yet to shoot.
I added 10% to the developing time and rated each 1/3 stop slower than
recommended just as a hedge.
- MCC
At 09:08 PM 1/15/2004 -0800, you wrote:
How long can slow to 400 speed B&W film be kept frozen without losing
speed or fogging? Is there an ideal temperature for freezing film?
shel
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Mark Cassino Photography
Kalamazoo, MI
http://www.markcassino.com
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