[pure-silver] Re: Old Paper Developer Question
- From: "BOB KISS" <bobkiss@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Mon, 18 Feb 2008 11:22:21 -0400
DEAR DON,
A few suggestions:
1) Yes, I have discovered that old papers seem to exhibit less fog
with the same degree of development in the Formulary 130 developer (glycin,
metol, hq) than in dektol.
2) The trick is to develop just the right amount of time. This is
when the D-Log E curves are as steep as they will get. After this time the
curves remain at the same steepness (contrast) and the speed of the paper
increases but, more importantly, so will the fog.which you don't want.
3) I have found that Benzotriazole can help some but Richard Knoppow
will rightly say that it has a different purpose.
4) What I have found to work beautifully was a very mild bleach
following the first fixer to clean up the whites, a rinse, then the second
fix and then the usual remaining hypoclear, toning, washing procedure.
5) It is very important to make your test strips and test prints
carrying them ALL THE WAY through the process including using Ansel's trick
of drying the tests in a microwave oven. Judge them dry.then you will know
what your results will really be otherwise both the bleaching and toning
will give you final results VERY different than what you see after the first
fix. In the long run you save more paper and time taking these precautions.
CHEERS!
BOB
_____
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Don Sweet
Sent: Monday, February 18, 2008 1:13 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Old Paper Developer Question
I have few boxes of 25+ year old enlarging paper, including Ilfobrom and
Portriga Rapid. It is unopened, so I decided before blazing away I should
look for some information about how to best to process it, particularly to
minimise fog. First I sourced some benzotriazole which I thought could just
be added to Dektol or Neutol or Bromophen developer.
Then following links from the UnblinkingEye website I found some suggestions
that both amidol-based or glycin-based developers are more resistant to fog
than the usual MQ or PQ blends. Does anyone know if that is right, and
whether either of them is likely to be a better developer for my old paper?
Thanks
Don Sweet
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