From: The Swami (dalaibobra@houston.rr.com)
Date: 07/17/03-01:10:45 PM Z
Today I got some Catechol to make some Pyrocat for the first time, and I
had a couple of questions...
What should Catechol look like? I got a pound from Artcraft Chemicals &
it is a shade darker brown than say Starbucks' Mocha Frapuccino : )
which seems consistent with what I have heard, but what i have not
heard, is what to look for in the consistency of the granularity. Mine
is a mixture of small, flat chips between a quarter & an eigth of an
inch in diameter. There are also granules the size of brown sugar mixed
throughout. I haven't tried to break the chips up and didn't know if
this was a bad sign.
Another question I have is whether or not it matters that I only have a
scale that measures in half grams. Sandy's formula (a la unblinking eye)
calls for .2g of potassium bromide; if I measure a half gram and
separate 2/5 by eye, is that negligible? I am going to use metol instead
of phenidone for Sol A, and the 10% sodium hydroxide in Sol B. Does this
all sound peachy?
The only other thing I am curious about is a general sense of what other
users are using for developing times/routines & ISO ratings for HP5 &
FP4+. I shoot both 120 & 4x5 in these films. I hand develop with a
spiral tank for 120 & use a Jobo Expert 3010 by hand for 4x5. Are there
special considerations when developing this way?
Thanks!
-Joe
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