Archived posting to the Leica Users Group, 1998/11/04
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Thanks Bob for the primer on PYRO.
It is such a departure from the tecniques and methods that I have learned that
I have been hesitant. I have read so many good things about PYRO and your
experience will be a big help.
Again, many thanks,
Bob Bedwell
Greensboro, NC
<< Hello, Bob'
Try the recepie that comes packaged with the PMK chemistry. It's a
bit less daunting, especially the mixing part. I use a Patterson
tank/reel and mix 300 ml. of water with 3ml. of "A" and 6ml. of "B" for
each roll of film. Two tank inversions every 15 seconds for 14 minutes,
then pour into a reserve tank, rinse with water, fix in a non-hardning
fixer (I recommend Photographers Formulary's TF4) for 4 or 5 minutes and
then straight into the reserve tank containing the used PMK. I keep it
in this bath for 3 minutes (my water is very soft) instead of the
recommended 2 minuites, with 3 inversions every 30 seconds. Wash for
20-25 minutes in running water, photo-flo, and hang to dry. If your
negs appear a bit thin, that's the way they are supposed to look. You
have never printed any easier than with these negs.
Happy trails, Bob
PS. Be sure and store your stock solutions in amber glass-they will last
for years.
>>