From: Katharine Thayer (kthayer@pacifier.com)
Date: 07/24/03-12:56:00 AM Z
Stuart W Melvin wrote:
>
You
> will see a very hard line high contrast result that certainly could not be
> achieved with a 30% Ammonium Dichro solution "dry" OR "saturated". The
> latitude of the variables is what determines the amount of artistic license
> one possesses. Choice is freedom. One or two bottles of saturated solution
> at one or two percentage levels on the shelf dose not facilitate much
> choice.
Hi Stuart,
I agree with the principle that the latitude of the variables
determines artistic freedom. However, I disagree with the assertion that
using one or two strengths of dichromate limits a gum printer's freedom
of expression. I have always used saturated ammonium dichromate
exclusively, but I get a full range of contrast by varying other
variables. There's almost always more than one way to achieve a
particular end in gum, is what I'm saying. Also, Dave Rose's work is
just one example of what can be accomplished with a couple of saturated
dichromate solutions.
I've also come to believe that the light source has a lot to do with it;
people using a brighter and hotter UV source than I use may not find
saturated ammonium dichromate as flexible for them as it is for me.
Things more often than not depend on other things, is what I've found to
be true in gum printing.
Katharine Thayer
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