RE: Pt/Pd Development

Marek,

It's a fairly large ratio (about 1pot phosphate : 2pot ox), but I suppose
if need be I can cut the phosphate down a bit.

We'll see, hopefully I'll get the chemistry in the next few days and I'll
give it a try.

Camden Hardy

camden@hardyphotography.net
http://www.hardyphotography.net

On Thu, July 13, 2006 3:25 pm, Marek Matusz wrote:
> 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 Çarþamba 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 Çarþamba 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 07/13/06-03:53:14 PM Z