Response to Is ID-11 the original D-76 or the buffered one?

As I recall, Metol is proprietary to Kodak and Phenidone is the Ilford version. Essentially they work the same but I think the phenidone is a cleaner working chemical. It is more expensive to purchase in bulk but you use ALOT less so it really boils down to a cheaper chemical. When D76 is replenished... that is when it gains activity. You will find that the contrast builds so you will end up taking more time off or cutting back on your replenishment. I have used D76 in large tanks for years so I speak from experience. I don't think the ID11 is buffered but it is due to the cleaner workings of the phenidone, to answer your question.

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