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Re: Pinholes in HIE

  • From: Kayo Matsushita <kayo@xxxxxxxxxxxxx>
  • Subject: Re: Pinholes in HIE
  • Date: Wed, 11 Sep 1996 23:39:52 -0400
At 19:45 -0400 9/11/96, John Sparks wrote:
>Anyone seen clear spots like these on the 35mm version (where dust
>shouldn't be a problem)?

I had this problem with Konica infrared film when I developed the film
using Edwal FG-7 w/ sodium sulfite and acetic acid stop bath (aka Kodak
SB-1). Since then, I've been using Rodinal and Indicator Stop Bath, and the
problem hasn't happened again. I have a feeling it was the acetic acid stop
bath causing the problem. An article on infrared photography I came across
on the web also mentions the problem caused by stop bath. Although I sent
the negs to Konica for examination, they haven't gotten back to me for two
months. Well, maybe I'll develop the next roll using FG-7 and Indicator
Stop Bath, and see what happens...


Kayo Matsushita - kayo@xxxxxxxxxxxxx -



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Topic No. 8