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RE: pin holes



Try using water as a stop bath, and eliminating the acetic acid. I found
that it causes the emulsion to effervesce (bubble) and can cause those
spots. Since making the change, I haven't had a single problem with it. Stan
is right: wash your hands before handling HIE. It is extremely sensitive to
the salts that are in persperation.

> -----Original Message-----
> From:	J.Wood [SMTP:shopper@xxxxxxxx]
> Sent:	Sunday, July 26, 1998 10:42 AM
> To:	infrared@xxxxx
> Subject:	Re: pin holes
> 
> At 08:10 PM 7/25/98 PDT, you wrote:
> >Help.
> >
> >I shoot 4x5 HSI and process in D-76 diluted with distilled water.
> >
> >My film is marked with fine pin-holes that print black. And despite the 
> >fact that I have been loading sheet film for over thirty-five years, I 
> >get fingerprints on the edges of HSI film (but on no other emulsion).
> >
> >Does anybody have a remedy to these problems?
> >
> >Stan Patz  NYC
> 
> Stan, I can't help with pin-holes, you're doing everything I would do.  I
> have the same problem with finger prints.  However, washing my hands
> immediately before loading and unloading film helps.  Otherwise try using
> cotton or surgical gloves for handling unprocessed HSI. It's awkward, but
> ...
> Jim
> 
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End of Infrared-Digest V0 #706
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