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Re: Eclair Cameras: film processing b&w reversal

Also, you can substitute Sodium Bisulphate for the sulfuric acid ... but I don't recall the weight. Any good chemist should be able to calculate it, though, by using the weight of the Pot.Dichromate as a reference. (Or just try a few small batches with varying amunts of NaS(x) and see what works best).M.

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