What to shoot 32 year old Tri-X?
Old 09-08-2018   #1
kknox
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What to shoot 32 year old Tri-X?

I have a few box’s expired 32 years ago old Tri-X. So I shoot it at box speed or a different iso?
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Old 09-08-2018   #2
AAlfano
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The rule I've heard is increase speed by one stop for each decade past expiration date. Given the variables involved in how a particular batch of film might have been stored over thirty plus years, I'm not sure how much weight I would give that rule though.



If you have a few rolls, I'd burn the first roll doing test shots at 50, 100, 200, and 400 in different lighting conditions. Take notes and see how they turn out; then you can make an informed decision as to how to shoot the remaining rolls.
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Old 09-08-2018   #3
charjohncarter
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@AAlfano, good answer.
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