[alt-photo] Re: Cyano experience on Al plates

[Loris Medici]

BTW, to be clear (it is not obvious enough in my previous message): I use
citric acid after the first 2-3 water baths, not before... (The print is
fully developed by that time, therefore citric acid doesn't affect contrast;
it only clears the highligts - if you experience yellowing with a particular
paper, that is - and slightly changes color into a more greenish hue - due
citric acid trapped inside prussian blue lattice...)


-----Original Message-----
From: Loris Medici [mailto:mail at loris.medici.name] 
Sent: Thursday, May 06, 2010 8:39 AM
To: 'The alternative photographic processes mailing list'
Subject: RE: [alt-photo] Cyano experience on Al plates

...
Even I don't experience yellow highlights, I put the print in a weak citric
acid bath (1 dessert spoon to 2 liters) to be on the safe side...
...