[alt-photo] Re: Alt-photo-process-list Digest, Vol 153, Issue 1

[BOB KISS]

DEAR MAREK,
	I also found that, all other variables the same (paper, temp, neg,
etc., etc.), pt/pd prints developed in sodium citrate required more exposure
than prints developed in Pot Ox.  And, at a dev temp of 100F (38C) I LOVE
the color of COT 320 in Pot Ox.
		CHEERS!
			BOB

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org
[mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
Marek Matusz
Sent: Tuesday, May 18, 2010 1:29 PM
To: alt photo
Subject: [alt-photo] Re: Alt-photo-process-list Digest, Vol 153, Issue 1


DOn,

Thanks for the post. If I can read you post correcty there might be some
differences in the final colour image, although I find that humidity has
perhaps a strongest influence.

Can the citrate developer be replenished like traditional POTA developr?
One advantage might be that citric acid is easily accessible and cheap.

Marek 
> From: donsbryant at gmail.com
> To: alt-photo-process-list at lists.altphotolist.org
> Date: Tue, 18 May 2010 08:11:00 -0400
> Subject: [alt-photo] Re: Alt-photo-process-list Digest, Vol 153, Issue 1
> 
> Hello Marek,
> 
> >
> Are there any benefits/differences for the citrate developer vs.
traditional
> potassium oxalate for palladium printing?
> >
> 
> Sorry to take so long to answer your question (assuming it was directed to
> me vs the general list) I receive the list posting in daily digest format
so
> I'm not too interactive, but the primary difference amongst different
> developers is the final color palladium prints will have. Generally
speaking
> warm potassium oxalate creates much warmer toned prints than sodium
citrate
> and ammonium citrate shift to a warm-neutral tone. But the type of
palladium
> salt and ferric oxalate used also affects the color too.
> 
> Did that help?
> 
> Don Bryant
> 
> 
> 
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