Re: plus density / pinholes

[Goff Photography <jdgoff@xxxxxxxx>]

At 07:51 PM 6/10/97 -0400, you wrote:
>Wayde Allen wrote:
>> 
>> On Tue, 10 Jun 1997, George L Smyth wrote:
>> 
>> > There are some very cheaply made plastic tanks that are not IR
>> > opaque.
>> 
>> You wouldn't happen to know which ones would you?
>
>No, I wouldn't.  Years ago I suspected this as the cause of a problem a
>club member had.  During our discussion on technique I came to realize
>that he didn't tap the tank following his first agitation.  When I asked
>why not he told me that it would probably crack the plastic.  I lent him
>my Patterson for his next roll of IR and the problem was solved.  He
>tossed his tank and purchased a decent one.
>
>george
>
>-- 
> Handmade Photographic Images     
>  http://www2.ari.net/glsmyth/
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>I've used JOBO tanks for about three years now with both Kodak and Konica
IR with no apparent fog. Tanks and reels used in ordinary darkroom light,
i.e., incandescent lights. Further: JOBO instructions for use of their reels
warns against using in final bath that contains wetting agent. They claim
this contaminates the reel, which contamination increasing over time with
continued use in such baths.

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