Re: Stain Redux - Pyrocat HD and Tri-X: was Double Dipping

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From: clay (wcharmon@wt.net)
Date: 12/31/01-07:54:43 AM Z


Sandy:

The solution I have been using I mixed about 2 months ago. I developed a
bunch of HP-5 and Tmax400 negatives at the same time, though, and the
results were fine, with only proportional image stain. So I don't think the
solution is bad. To be fair, this is a new batch of Tri-X that was special
ordered in 7x17 size, and this was the first set of negatives developed from
this batch. I suppose it is possible that the great yellow father has
somehow messed up this batch. I am going to shoot some more with this film
and develop some negatives in both Rollo and D-76 to see if there is a
problem with the film. I sure hope it is not the film. The thought of trying
to return 15 boxes sounds like a royal pain in the glutes.

BTW, the negatives were still usable. I just needed about a 25% increase in
exposure.

Clay

----------
>From: Sandy King <sanking@clemson.edu>
>To: alt-photo-process-l@skyway.usask.ca
>Subject: Re: Stain Redux - Pyrocat HD and Tri-X: was Double Dipping
>Date: Mon, Dec 31, 2001, 1:30 AM
>

>Clay,
>
>I did not see your original message regarding the fog+ stain you got
>on the border areas when using Pyrocat with TRI-X. The first thing
>that pops into my mind is to ask about the age of your stock solution
>of Pyrocat? I mention this because the shelf life of Pyrocat, when
>mixed with phenidone, is probably no greater than about three months.
>When the Pyrocat stock solution goes bad the result is a lot of extra
>base stain, somewhat irregular - even splotchy- and very observable
>on the clear edges of the film.
>
>
>With TRI-X developed in fresh Pyrocat I have not observed elevated
>overall stain levels or excessive general fog.
>
>Sandy King


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