[alt-photo] Re: dilution of pt/pd

[Terry King]

Captain Abney's point, and mine, was the more general one that is best to avoid over-complication.



Terry





-----Original Message-----
From: Alberto Novo <alt.list at albertonovo.it>
To: The alternative photographic processes mailing list <alt-photo-process-list at lists.altphotolist.org>
Sent: Fri, 23 Jul 2010 8:00
Subject: [alt-photo] Re: dilution of pt/pd


> Captain Abney once said ' The only advantage of this gentleman's formula is that it adds to the expense'. 
 
At the times of Capt. Abney platinum salts were as expensive as silver salts, but now that we are counting the drops any excess of Pt is only a waste of money once we know that the chemistry of Pt printing is the chemistry of iron.  
I don't see any complication to think with XXI century neurons.  
Alberto 
www.grupponamias.com 
www.alternativephotography.com/articles/art102.html 
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