From: Linas Kudzma (lkudzma@earthlink.net)
Date: 01/26/02-09:03:06 AM Z
Witho,
Very interesting. I'm particularly surprised that you report reduced
printing times when using Na2PtCl6. This is the reverse of what I see. Do I
understand you correctly?
I don't normally use LiPd when printing DOP. It must add another variable
to what we are seeing. I haven't varied from using a mix of Na2PdCl4 and
Na2PtCl6 for DOP. In this combination, Na2PtCl6 gives me slightly increased
print times, a contrast boost, and seems to give brighter whites.
It's very intriguing what Carl and Jeffrey say about using lithium and
potassium salts of Pd for DOP. I need to try this!
Linas
> [Original Message]
> From: Witho Worms en Jorien van Santen <verzet13@xs4all.nl>
> To: <alt-photo-process-l@sask.usask.ca>
> Date: 1/25/2002 2:58:40 PM
> Subject: Na2PtCl6
>
> Linas, today I did some printing and made a fast test with the Na2PtCl6. I
> used it as a 25% substitute for LiPd and made a few big prints, 0,5 and 1
ml
> of sensitize.What I found was that it compresses the darker values in the
> print. The get the same dark tones as in a print without Cl6 I had to
reduce
> my printing time. The faster printing time gives the impression of a
harder
> print. As far as I could see the lighter values in the print were almost
not
> affected by use the CL6.
>
>
> Witho
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