Re: IR Film Processing

[Patrick Magee <pmagee@xxxxxxxxxxxx>]

On Tue, 27 Oct 1998 Mankin.Larry@xxxxxxxxxxxxxxx wrote:

> I have been presoaking my IR for one minute and washing for an equal time
> after the fixer with Rodinal using tap water as the developer.  Should I be
> presoaking longer, Two minutes or more ?
> Should the interim wash also be longer - two minutes?  My final wash is
> fifteen minutes which I assume is sufficient.    My problems with pin holes
> has been minimal.  Answers please!!!
> 
> Larry M.
> 
I presoak for 1 minute in _distilled_ water. Develop with Rodinal and
_distilled_ water. Rinse in _distilled_ water, using 2 changes in one
minute. Fix with fixer made with _distilled_ water. Wash for 10 minutes in
tap water. I live in Oregon and we have great water quality but I still
used distilled water for IR processing. This has produced a consistent
result when using tap water produces inconsistent results, including
pinholes. I just have to assume that the levels of "additives" to tap
water varies from day-to-day or season-to-season. I have even started
using distilled water for TMax processing and I am having none of the
consistency problems I have previously encountered. At a $1/gallon for
distilled water it has been a cheap fix for frustrating problems.

Pat

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