RE: PT/PD MOGULS, MAESTROS & GURUS
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- Subject: RE: PT/PD MOGULS, MAESTROS & GURUS
- From: Eric Neilsen <firstname.lastname@example.org>
- Date: Tue, 13 Feb 2007 09:46:58 -0600
- Comments: "alt-photo-process mailing list"
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Chris, WHERE is that note taken from?
Eric Neilsen Photography
4101 Commerce Street
Dallas, TX 75226
> -----Original Message-----
> From: Christina Z. Anderson [mailto:firstname.lastname@example.org]
> Sent: Tuesday, February 13, 2007 8:43 AM
> To: email@example.com
> Subject: Re: PT/PD MOGULS, MAESTROS & GURUS
> Even tho I have hydrochloric acid I have never used it to reduce a print.
> My notes say "palladium is more soluble in strong acids, so if you use
> hydrochloric acid, the traditional clearing bath, your dilution of that
> clearing bath is 0.5%, not 1% as it is with platinum." I, too, am
> if this is wrong? And I wonder if it will work when using
> NA2/palladium...hmmm...I have a too dark print, maybe I should just go do
> > DEAR PT/PD MOGULS, MAESTROS & GURUS ON THIS LIST,
> > Please help me resolve what appears to be a conflict in both the
> > literature and common wisdom.
> > Here are the two conflicting bits of info:
> > 1) You must not use a hydrochloric first clearing bath when printing
> > palladium as it will bleach the print, even though the concentration
> > should
> > be around 1 to 1.5 %.
> > 2) Recently, when I asked the list if there was any way to slightly
> > the density of a Palladium print I was told that the concentration of
> > necessary to have any effect would be so high that it would be dangerous
> > to
> > use in a regular darkroom and might have deleterious effects on the
> > I was told to just make another, lighter print.
> > *********So, you can see my dilemma. Is this not a contradiction? 'Tis
> > puzzlement! Please enlighten me...as it were!
> > CHEERS!> BOB