Archived posting to the Leica Users Group, 2006/07/01

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Subject: [Leica] xtol spots
From: dstate1 at hotmail.com (Dan States)
Date: Sat Jul 1 15:37:45 2006

Arche, is there any detail in the hotspots?  Could you describe your 
process, including stop bath, agitation and fixer?  It would be helpfull in 
trying to understand the problem.

best wishes
Dan


>From: "Arche, Harvey" <Harvey.Arche@jp2hs.org>
>Reply-To: Leica Users Group <lug@leica-users.org>
>To: <lug@leica-users.org>
>Subject: [Leica] xtol spots
>Date: Sat, 1 Jul 2006 14:46:19 -0500
>
>The spots I'm getting on Tmax 3200 are not from using a wax paper bottle 
>seal like I thought. I'm having the same problem with a completely new 
>batch of Xtol.
>
>To recap: they look like yellow mold spots (3/4mm - 2mm in dia.) scattered 
>all over the wet film. On scanning the dried film they show as areas of 
>hyper development, the larger ones dount shaped.
>
>I'm mixing with distilled water. I'm using kodak rapid fix with hardener, 
>but this wasn't a problem before. I'm mixing my 1:3 dilution in a measuring 
>cup that has never had anything but developers mixed in it.
>
>Could be the film batch, but the first 4 rolls out of a box of 20 were OK. 
>One possiblity: actual mold? I store in the fridge, and take out 1-3 days 
>in advance of use. Could moisture cause mold to form in a house with AC?  
>What would it look like on developed film? Its not happening with other 
>film I handle in the same way.
>
>Next I'll develop a roll in D-76 and see what happens.
>
>Thoughts and suggestions welcome.
>Arche
>
>
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In reply to: Message from Harvey.Arche at jp2hs.org (Arche, Harvey) ([Leica] xtol spots)