Today I happened to open a newish roll of FP4+ in 120 size (expiry June 2023). Out of idle curiosity I held the silver exterior bag up to the window - and I could see through it! I could easily make out the details of the window curtain. And I could see strong light even through two layers.
After this discovery I fished a yellow plastic wrapping from a recent roll of TMY120 out of the trash. It was opaque under the same conditions.
From now on 120 FP4+ goes into a black container once it's removed from its little cardboard box.
After this discovery I fished a yellow plastic wrapping from a recent roll of TMY120 out of the trash. It was opaque under the same conditions.
From now on 120 FP4+ goes into a black container once it's removed from its little cardboard box.
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