From: Carl Weese (cweese@earthlink.net)
Date: 03/23/01-12:26:36 PM Z
Ginger,
I'll take a wild guess: the unusual cold caused the heating system to work
more than usual, which resulted in lab conditions that were drier, lower
humidity, than usual. This will easily result in reversal or 'bronzing out'
of dark values. Other possible causes are coating that sinks too deeply into
the paper, incorrectly mixed (not enough metal) coating, and probably some
others. The cold might have caused the metal solution to be weak--look and
see if there is solid metal-salt precipitated out on the bottom of the
bottle.---Carl
--
Web site with workshop information and
**NEW PICTURE GALLERIES**
http://home.earthlink.net/~cweese/
----------
>From: Ginger Sheridan <sheridan010@earthlink.net>
>To: alt-photo-process-l@usask.ca
>Subject: "Sabbatier" of Palladium
>Date: Fri, Mar 23, 2001, 12:39 PM
>
> I have been printing Palladium for years. I use B&S kits, a velvet brush. I
> have had no problems. This week I coated a new batch of paper, using a
> glass rod. I coated it at school, which means I did not have as clean a
> space as at home - but I was careful.
>
> When I developed the prints, the dark area glowed a sort of metallic copper
> color. It did not go away with fixing. I have never seen this before. It is
> sort of like Sabbatier. Only in the dark shadow areas are light and
> coppery. The rest of the image is fine. I printed another image at the same
> time/same conditions which had no shadows. It didn't have any of this effect.
>
> At first I suspected the glass rod (sorry B&S) but then I had a piece of
> paper from the same batch that was coated by velvet (I have been using the
> same velvet for years, so that is not it). It did the same thing with the
> shadow area of the print.
>
> Any insight? It was very cold (for Florida) - so perhaps my chemicals were
> cold when coating. Would that have done it? I know of no metal
> contamination - nothing I used was metal. Could there be a trace of other
> alt processes (cyanotype or Van Dyke or Sprint B&W chemicals) in the
> container I used. If so, it would have been minuscule - could that have
> done it?
>
> Thanks for any suggestions. I have coating another round and will print
> next week to see if it was a fluke.
>
> All the best,
>
> Ginger Sheridan
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