> I have been using a variation of ABC Pyro to make long scale negatives for
> albumen printing. The formula is D-1, published by Kodak, however the
> dilutions and development times are different for long scale negatives.
> With T-Max films I use a dilution of 3:1:1:9 rather than the 1:1:1:7 for
> regular negs. The development time is 20 to 25 minutes one at a time face
> up in a flat bottomed tray. Whew! The beauty of this developer is the long
> scale along with a very low base plus fog level. Wear gloves when
> processing and use a mask when mixing the dry pyro!
> You can send a pound or two of the stuff my way if you have too much of it ;-)
>
> P.S. haven't tried D23, what kind of density range, dilution, fog, etc. do
> you get with it?
>
I use D23 with TMX developing for a DR of 1.8. It producess a very
low fog level (0.04). I use it straight for anywhere from 5 to 20
minutes @ 75 degrees F followed (usually) by 3 minutes in 1% Kodalk.
This produces good shadow separation without blocking up the
highlights. The above times are for rotary development (Jobo or
BTZS).
I have tried PMK Pyro and personally prefer D23 for most of my work.
Keith
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Keith Schreiber
Rights and Reproductions
Center for Creative Photography
University of Arizona
Tucson, Arizona 85721
Fon: 520-621-7968
Fax: 520-621-9444
Email: keith@ccp.arizona.edu
WWW: http://www.ccp.arizona.edu/ccp.html
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