Grain and sodium bisulfite

[normmamiya]

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?

Regards

[kbg32]

It does work. I haven't personally done this, but I know photographers that have. About 9% is correct.

[EmilGil]

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?

[kbg32]

A 9% solution of sodium bisulfite added to Edwal's FG7 is recommended. You'll need to experiment with developers. Don't expect miracles.

[normmamiya]

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

Any comments?

Thank you for replies.

[patrickjames]

Just to let you know, reducing grain in this way also reduces sharpness, so it comes down to what you value more.

Patrick

[Xmas]

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.

noel

[M4streetshooter]

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