View Full Version : Grain and sodium bisulfite
I read that a small amount of sodium bisulfite solution (9%?) to the developer can reduce grain. Do you have an opinion about this? What is your recipe?
It does work. I haven't personally done this, but I know photographers that have. About 9% is correct.
Check with the guys at APUG (http://www.apug.org), they should know.
My first question is, 9% bisulfite added to which developer? D76, Rodinal or PMK?
A 9% solution of sodium bisulfite added to Edwal's FG7 is recommended. You'll need to experiment with developers. Don't expect miracles.
I want to try it with HC-110 and HP-5 (800 ISO) or Delta 3200.
Thank you for replies.
And film speed as well, D76 1:1 is the standard dev for grain, speed and actuance, vary anything and you have swings and roundabouts.
Sodium Sulphite is what you need not BiSulphite.....
add between 7% and 12% solution to the distilled water to make the developer dilution you want.....be careful because BiSulphite will soften and reticulate the emulsion......don
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