Re: van Dyke chemicals

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From: Judy Seigel (jseigel@panix.com)
Date: 09/19/03-12:24:59 PM Z


On Thu, 18 Sep 2003, Marcelo Mammana wrote:

> Hello, I wish to thank Bert and Ed, for your help in this topic. By the
> way, Ed, what's the difference between the green and the brown? I don't
> want to bother with chemistry, but would like to know what's the
> difference in the final result.

You can make a cyanotype with the brown -- the green didn't become
generally available until early 20th century & then much more expensive.
But odds are some formulas will work differently, also some papers, sizes,
etc... as well as toners. The brown is also slower.

Judy


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