RE: Pt/Pd Development

Camden,
If the recipe calls for a relatively small amount (comparing to potassium
oxalate) then I would not worry at all. If you want to be more exact you can
add some extra oxalic acid to compensate for the dibasic potassium
phosphate. The exact amounts can be worked out quite easily, let me know if
you need some help with it.
In any event yuor developer solution should still be acidic. I never tried
phosphate addition, so I will be curious how it works out for you.
Marek, Houston

>From: Camden Hardy <camden@hardyphotography.net>
>Reply-To: alt-photo-process-l@usask.ca
>To: alt-photo-process-l@usask.ca
>Subject: RE: Pt/Pd Development
>Date: Thu, 13 Jul 2006 14:03:34 -0600 (MDT)
>
>Loris,
>
>Thanks for the reply, but I'm looking into this development mixture not so
>much for its results, but mostly for the sake of trying it.
>
>I've been looking at places like B&S and the Formulary, and the
>Formulary's the only place I've found online that sells potassium
>phosphate at all (short of buying $1000 worth in bulk). The original
>question was whether potassium phosphate would work in dibasic form as
>opposed to monobasic (which is what the "recipe" called for).
>
>So anyway, I think I'm just going to dive in and see what happens. I'm
>waiting on chemistry and paper at the moment, but if I find out anything
>I'll let everyone know.
>
>
>Camden Hardy
>
>camden@hardyphotography.net
>http://www.hardyphotography.net
>
>
>
>On Thu, July 13, 2006 1:30 pm, Loris Medici wrote:
> > Camden, I found one of my Ziatype prints, see it @:
> > http://www.loris.medici.name/Karda_Sandalyeler_Ziatype.jpg
> > (12 drops AFO + 10 drops L2PdCl4 + 2 drops KAuCl4 - works like AuCl3
> > a.k.a.
> > Gold Chloride)
> >
> > Save the file and open it inside from an icc aware application to see
>the
> > exact scan (which is very close to the real print - in my calibrated
> > screen).
> >
> > Did you notice the split tone? Like it? If yes, it's time to try Ziatype
> > ;)
> >
> > Regards,
> > Loris.
> >
> > -----Original Message-----
> > From: Loris Medici [mailto:mail@loris.medici.name]
> > Sent: 12 Temmuz 2006 Çarşamba 23:01
> > To: alt-photo-process-l@usask.ca
> > Subject: RE: Pt/Pd Development
> >
> > It's not an answer to your question but let me suggest you trying
>straight
> > Ziatypes - that is: LiPd as the metal + Ammonium Iron(III) Oxalate as
> > sensitizer (and maybe adding a drop or two of Gold Chloride) - for
> > blue/black prints. It's truly wonderful. I prefer much the print-out
> > version
> > and I believe that AFO is a better iron sensitizer than FO (because it's
>a
> > well-defined, easy to obtain and not-PIA-to-mix compound)
> >
> > Regards,
> > Loris.
> >
> > -----Original Message-----
> > From: Camden Hardy [mailto:camden@hardyphotography.net]
> > Sent: 12 Temmuz 2006 Çarşamba 20:58
> > To: alt-photo-process-l@usask.ca
> > Subject: Pt/Pd Development
> >
> > There's a recipe out there to add potassium phosphate monobasic to
> > potassium
> > oxalate developers for blue-black tones, which I would like to try.
> > However, Photo Formulary's only got potassium phosphate dibasic.
> > Does this matter? Can I get away with using dibasic instead of mono?
> > What's the difference?
> >
> >
> >
> >
>
Received on 07/13/06-03:25:30 PM Z