[pure-silver] Re: maco film
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 18 Apr 2007 00:43:40 -0700
----- Original Message -----
From: "mail1" <mail1@xxxxxxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, April 17, 2007 9:02 AM
Subject: [pure-silver] Re: maco film
I also settled on T-Max 100 rated at EI 50 developed in
D-23. In the past I
used Perceptol with superb results.
I have started using Pyrocat_MC in a Jobo with nitrogen
injection to control
developer oxidization, and I look forward to testing T-max
100 & 400.
Jonathan [mail1@xxxxxxxxxxxxxxxxx]
Perceptol or Microdol-X is finer grained than D-23,
enough to see a difference. D-25 is another possibility but
it may cause dichroic fog on modern emulsions like T-Max,
Delta, or Fuji Acros. Microdol-X evidently contains an
anti-silvering agent to prevent this although I don't know
exactly what it is. I suspect that Perceptol has the same
thing, certainly Ilford knows about using anti-silvering
agents in developers.
It could be that D-25 would work fine without it but, if
you decide to try it, I would test on a negative of no
value. D-25 is similar to D-23 but it is buffered to neutral
pH with Sodium Bisulfite. It has similar properties to
Microdol, however, Microdol and Perceptol use common table
sale (Sodium Chloride) as the fine grain agent.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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