For any chemists out there....what is the effect of the AMOUNT of sodium sulfite (NaS) when using ABC pyro? The reason I ask is because I calculated that I would need about 4 tsps (20g) of NaS if added dry if I was making up 2L of working ABC developer in the standard 1:1:1:7 dilution. I would use 200 ml of A, 200 ml of C and the 200 ml of water from B would be added to the 1400 ml I started with, making a total of 2L. The question comes up because a good friend tells me that when added dry, 1/8 (under 1g) tsp will suffice, a factor of 20 less NaS than if added from a B prepared liquid. He tells me that he heard this from reliable sources. So, do I add 1/8 tsp or 4 tsps? Does it matter? How? I mean I really don't care about adding general stain but I would like to enhance proportional stain. Thanks for any insight...
BTW, what dilution/time (70 deg) of ABC would be a good starting point for Tri-X sheet film, tray developed for Pd prints?
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