Response to Tri-X

Hi Bob, I don't know if this answers your question exactly but I ran into the same issue with FP4. So I use a dilution of 1:10 from stock (instead of 1:7) and extent the time by about 30%. So where I needed about 5:30 minutes with dilution B (for my enlarger etc etc etc), I end up needing about 8 minutes with 1:10. No nasty surprises in the characteristic curve either. Cheers. DJ

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