Way too much pigment IMO. I'm using 1gram carbon black per 100ml of gum.
At that concentration it's very strong. I'm surprised you're getting any
kind of image.
30 minutes for development is about right.
Dave in Wyoming
(snip)
> > >>> Emulsion made from 2.5 ml gum, 2.5 ml potassium dichromate
> > >>> solution and about 0.5 gm Daniel Smith Lamp Black pigment
> > >>> Still development for about 10 minutes brought up reasonable
> > >>> density -- my fear in letting in go on much longer was that I'd
> > >>> loose the entire image (just like the first dozen or so failures).
Received on Mon Jan 9 20:26:55 2006
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