BUT, If I may, I would like to *strongly* recommend Gordon
Hutchings book *The Book of Pyro* for those interested in pyro
development for their films.
His recipe calls for pyrogallol, metol, sodium sulphite and sodium
metaborate solution
I do not have his book to hand, but could get the address to which
one may write for the book (about $30.00 US)
I have used his recipe for some time and have found that the
negatives processed in PMK pyro developer, maintain the beautiful
highlight details in subjects such as clouds, scenes where I would
like to maintain the *real* texture of snow (of which we do get our
fair share). There is no comparable developer. The pyro tanning
(stain) is produced in proportion to the amount of silver developed.
When processing, the negatives are PUT BACK into the developer
AFTER fixing and they *develop* that nice yellowish stain so
reminiscent of the *old* negatives
Ken