From: Judy Seigel (jseigel@panix.com)
Date: 11/18/02-11:25:25 PM Z
On Mon, 18 Nov 2002, Dave Rose wrote:
> I use both ammonium dichromate and potassium dichromate as saturated
> solutions. AD is definitely faster and yields lower contrast than PD. In
IME AD can give same or greater contrast than PD if used in lower ratio to
gum. Ratio of di solution to gum is another important variable.
J.
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