From: Judy Seigel (jseigel@panix.com)
Date: 07/23/02-08:35:10 PM Z
On Mon, 22 Jul 2002, Galina Manikova wrote:
> Philippe,
>
> you might want to try a silkscreen photopolymer emulsion, that is intended
> for waterbased colors,
> f.e. the one from Murakami called Aquasol. It comes in two versions, be sure
> to ask for the one, that is white, not blue, if you want to use it as a base
> for other colors.
>
> I have tried that a lot, it takes pigments in large grains as well and is
> easy to handle. I am not sure if it is so healthy as it is said to be. There
> was a discussion on this list once upon a time on the subject and people
> said, that these emulsions are based on dichromates, even though they say,
> that it is only a polymer.
>
> One thing is certain - it is only high contrast, no tones. So it will never
> be the same as gelatin-, gum- or other colloid-dichromate.
Sometime in the 1990s (sorry, my files have gone into meltdown) a
discussion in English photo magazine (as I recall, AG+) between Dunstan
Perrera, Peter Fredrick and ...... ???? [Keith Dugdale ???] argued this
point, Dunstan saying his then new process was non poisonous, others, um,
fractious on the subject. (NEVER refile anything is one thing I can say
for sure.)
The English Magazine "Amateur Photographer" about that time had an article
and demo of Dunstan's process, which I believe was photopolymer, & like
Galina says, high contrast. I was told that he did very beautiful color
prints in the medium for others, tho his own photo of drowned babe in the
magazine looked in urgent need of brain transplant.
Now Dunstan has a new version of the process, being marketed in England
through Michael Maunder. He sent me some PR on it, and I gather it really
does work, but unfortunately the press release didn't say anything I could
translate into information. Meanwhile, I note that if one has digital
negatives, the high contrast could be more readily printed as tone.
> What I need is a photopolymer that will dry before exposure and that will
> keep from damaging my negs. A water soluble photopolymer would be good.
Philippe -- a very thin mylar (I used Saran wrap successfully, tho that
was some yrs ago when it was thicker) will protect negative.
cheers,
Judy
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