Grain and sodium bisulfite
Old 04-02-2007   #1
normmamiya
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Cool Grain and sodium bisulfite

Hi everybody

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?

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Old 04-02-2007   #2
kbg32
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It does work. I haven't personally done this, but I know photographers that have. About 9% is correct.
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Last edited by kbg32 : 04-02-2007 at 07:49.
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Old 04-02-2007   #3
EmilGil
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Check with the guys at APUG, they should know.

My first question is, 9% bisulfite added to which developer? D76, Rodinal or PMK?
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Old 04-02-2007   #4
kbg32
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A 9% solution of sodium bisulfite added to Edwal's FG7 is recommended. You'll need to experiment with developers. Don't expect miracles.
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Sodium bisulfite and HC-110
Old 04-02-2007   #5
normmamiya
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Sodium bisulfite and HC-110

I want to try it with HC-110 and HP-5 (800 ISO) or Delta 3200.

Any comments?

Thank you for replies.
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Old 04-02-2007   #6
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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.

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Old 04-02-2007   #7
M4streetshooter
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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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