Re: PT/PD MOGULS, MAESTROS & GURUS
Eric, have you been using muriatic acid? (just wondering if that's what you meant by alternatives). I'll give you a call when you've no longer got the flu to come see the studio/share work... now, thanks to Kerik, I have some wet plate alumitypes to share =)
-Jeremy Moore- On 2/14/07, Eric Neilsen <ejnphoto@sbcglobal.net> wrote:
You may try it on a wet, freshly processed print first. I am home with flu
today, so no testing for a little while. : ( I will have to go out and buy
some for testing. I have been using alternatives to the HCL for quite some
time.
Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotography.com
Skype ejprinter
> -----Original Message-----
> From: BOB KISS [mailto:bobkiss@caribsurf.com]
> Sent: Wednesday, February 14, 2007 8:14 AM
> To: alt-photo-process-l@usask.ca
> Subject: RE: PT/PD MOGULS, MAESTROS & GURUS
>
> DEAR CHRISTINA,
> I do have HCl in the "pool cleaner" form. I will see if I can do
> the 1:60 dilution test on one of the test strips that I have kept. I will
> tear it in half such that I have the same tones on both pieces, "bleach"
> one
> and then do a dry comparison. I may even get out my X-Rite and be
> somewhat
> scientific about it!
> CHEERS!
> BOB
>
> -----Original Message-----
> From: Christina Z. Anderson [mailto:
zphoto@montana.net]
> Sent: Wednesday, February 14, 2007 12:39 AM
> To: Alt, List
> Subject: Re: PT/PD MOGULS, MAESTROS & GURUS
>
> Thanks, John, for saving me time locating my source; you are exactly
> correct.
>
> Eric, since you have hydrochloric acid (alas I was wrong, I only have
> sulfuric, nitric, and phosphoric) and since pt/pd is your process of
> choice,
>
> why don't you do a step wedge of each and tell us what you find? BTW,
> John,
>
> I checked Neblette's 4th edition and I can't find the Nadeau source
> there,
> even though there is a chapter on pt/pd. Neblette quotes Clerc and a
> couple
>
> others, tho.
>
> But Bob, back to your original question--do you even have HCL and can you
> see if a dilute mix will do what you need it to do? Isn't HCL that pool
> chemical stuff that one could get at a hardware store?
> Chris
>
>
> ----- Original Message -----
> From: "John Roseborough" <platinumprinter@msn.com>
> To: <
alt-photo-process-l@usask.ca>
> Sent: Tuesday, February 13, 2007 11:59 AM
> Subject: Re: PT/PD MOGULS, MAESTROS & GURUS
>
>
> > Eric,
> >
> > In "The History and Practice of Platinum Printing" by Luis Nadeau (2nd
> > edition) page 32, Nadeau states that HCl is to be used highly diluted to
> > 1% - 1.5% for Platinum and 0.5% for Palladium.
> >
> > John Roseborough
> >
> > ----- Original Message -----
> > From: "Eric Neilsen" <ejnphoto@sbcglobal.net>
> > To: <alt-photo-process-l@usask.ca>
> > Sent: Tuesday, February 13, 2007 8:46 AM
> > Subject: RE: PT/PD MOGULS, MAESTROS & GURUS
> >
> >
> >> Chris, WHERE is that note taken from?
> >>
> >> Eric Neilsen Photography
> >> 4101 Commerce Street
> >> Suite 9
> >> Dallas, TX 75226
> >> http://e.neilsen.home.att.net
> >>
http://ericneilsenphotography.com
> >> Skype ejprinter
> >>
> >>> -----Original Message-----
> >>> From: Christina Z. Anderson [mailto:
zphoto@montana.net]
> >>> Sent: Tuesday, February 13, 2007 8:43 AM
> >>> To: alt-photo-process-l@usask.ca
> >>> Subject: Re: PT/PD MOGULS, MAESTROS & GURUS
> >>>
> >>> Bob,
> >>> 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
> >>> interested
> >>> 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
> >>> it.
> >>> Chris
> >>>
> >>>
> >>> > 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
> >>> with
> >>> > 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
> >>> reduce
> >>> > the density of a Palladium print I was told that the concentration
> of
> >>> HCl
> >>> > 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
> >>> paper.
> >>> > I was told to just make another, lighter print.
> >>> > *********So, you can see my dilemma. Is this not a contradiction?
> >>> > 'Tis
> >>> a
> >>> > puzzlement! Please enlighten me...as it were!
> >>> > CHEERS!> BOB
> >>>
> >>
> >>
> >>
> >>
> >
> >
>
>
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