The film canisters usually have a light-proof (ish) seal on them so even if that stuff was inside the canister I can't see it having come out with the film. Is the stuff also in the mirror box on the other side of the shutter?
@cagimaha started
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The film canisters usually have a light-proof (ish) seal on them so even if that stuff was inside the canister I can't see it having come out with the film. Is the stuff also in the mirror box on the other side of the shutter?