From: Steve Shapiro (sgshiya@redshift.com)
Date: 05/17/00-08:55:22 AM Z
POT Metabisulfite seems to reduce the pyro stain.
S. Shapiro
----- Original Message -----
From: Cor Breukel <cor@lumc.nl>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Wednesday, May 17, 2000 4:47 AM
Subject: Re: Reducing Pyro negs
> It is said that in that a diluted acid (acetic) should remove the stain,
> but in my hands this didn't work 9even applied a drop of glacial acetic
> acid with no effect). Maybe you could consider bleaching and fixing away
> the silver image? No personal experience here, so you better test
> this..;-)..
>
> Adam Kimball wrote:
> >
> > Hey all,
> >
> > I've got a few negatives that are simply too dense to be
> > printed easily in platinum. They read 1.9 on a b&w
> > transmission densitometer, and have a *good* deal of stain -
> > they seem to be printing as if they were near 2.3 or more.
> > Anyway, the exposures are taking around 35 minutes and its
> > killing me. I'm sure farmer's reducer would work fine with
> > them, but if there is a more optimal reducer - I'll use it.
> >
> > Much thanks,
> > Adam
>
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