Re: pop fixer

eml@gate.net
Wed, 9 Aug 1995 10:17:41 -0400 (EDT)

>
> ive been having major problems with fixing a pop paper i bought. i used
> both the fixer formula reccomended and a fixer formula reccomended in The
> Keepers of Light, and both just bleach the hell out of the image, leaving
> nothing in a matter of a few seconds. anyone know the problem? could it be
> my water? anyone know of a different fixer recipe that wont bleack out my
> paper?
> thanks,
> kate
>

The reduced silver in a P.O.P. print is very fine, and the chemistry
(an excess of silver nitrate in the emulsion) is such that the image is
very easily dissolved away. I would suggest using a plain hypo
(Sodium Thiosulfate) fixer, dilute, and don't overfix! Perhaps a
10% hypo solution would be enough. Of course, the image can be
toned, thus increasing its opacity. The toners used on POP usually
contain gold, though I would think that a copper toner or intensifier
would work OK, while keeping the reddish color. A two-part iron
blue toner might also work. I have no idea what chromium intensifier
would look like, but it also could strengthen the image.

Hope this helps you!
Ed

-- 


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