Carbon black is an excellent choice. I use carbon black (powder pigment)
purchased from Photographer's Formulary, at a ratio of 1g pigment to 100ml
gum. At this ratio, it prints very strong with good clean highlights.
Dave Rose
Powell, Wyoming
> All,
> I want to print very dense black one coat gums. Could anybody give me some
> ideas of what the carbon black to gum ratio can I go to? How much is too
> much pigment? I am just trying to cut down number of my own experiments
> here. Any advice would be appreciated.
> Marek
>
>
>
Received on Fri Dec 2 08:51:02 2005
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