Response to Rodinal - Minimum Concentrate Amount?

I generally consider 1 ml Rodinal concentrate per sheet of 4x5 film to be adequate. Since a 36 exposure roll of 35mm is roughly equivalent to a sheet of 8x10 (4 sheets 4x5), I would say that, yes, 4 ml's would be about right. Anyway, I have developed INNUMERABLE rolls of 36 exposure film in my day, many, many of them in Rodinal 1:50, and never had any problems. Go for it.

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