[alt-photo] Re: dilution of pt/pd - water in the brush

[Eric Neilsen]

With these stronger solution, a slight dilution or even a bit more like the
printer reference earlier, it gives you the latitude to allow for dilution. 

Eric Neilsen
4101 Commerce Street, Suite 9
Dallas, TX 75226
214-827-8301

Let's Talk Photography
www.ericneilsenphotography.com
SKYPE ejprinter

-----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
Loris Medici
Sent: Friday, July 23, 2010 3:32 PM
To: The alternative photographic processes mailing list
Subject: [alt-photo] Re: dilution of pt/pd - water in the brush

Hi Eric,

2010/7/23 EJ Photo <ejnphoto at sbcglobal.net>:
> ...
> In Ware's paper from the late 80's or early 90's, he using a .7M target
for
> metals and 1.4M for AFO.

Indeed, his solutions are balanced close to the point of max.
solubility of AFO at room temperature, which is 1.4M (~ 60% IIRC)... I
personally opt to use 45% AFO with a Pd solution precisely balanced to
it. I get pretty convincing blacks that way, therefore haven't felt
the need of trying something stronger - which I'm perfectly sure will
give better results in terms of speed and dmax...

Regards,
Loris.
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