[alt-photo] red spots in pt/pd

[Christina Anderson]

Found this post very interesting...

From 1999.

Black spots. Red spots. Pink Pt/PD seemed to be the trouble at the time.


Keith Schreiber (jkschreiber at worldnet.att.net)
Thu, 15 Jul 1999 02:26:01 -0700

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Last year there was a discussion about spots on Pt/Pd prints and Eric 
Neilsen wrote the following: 

>The little black specs I have passed off as impurities in the chemicals 
>or paper, or both. The BIG black spots, as on the Beinfang print can be 
>imperfections in the paper that allow the solution to "puddle" on that 
>spot. And the red spots that I have seen are from the rubber rollers of 
>the paper making process. 

I have just encountered red spots for the first time and am wondering if 
this is speculation or certainty, and does anyone know exactly what they 
are. I am printing palladium developed in K oxalate and cleared in 
sulfite/EDTA. 

The spots don't appear (or at least I haven't noticed them) until well into 
the wash phase. The paper I'm using is the last of a batch of Lenox 
purchased in '96 from Daniel Smith. Up to now it has worked beautifully, but 
today 3 of 3 prints on it have red spots. 

Any ideas are much appreciated. Eric? anyone else? 

Regards to all, 
Keith 

Keith Schreiber 
jkschreiber at worldnet.att.net 
Christina Z. Anderson
christinaZanderson.com