Eric Mac said:
Are there any paper developers with a long shelf
life (like HC110 or Rodinal for film) ... ?
I develop film fairly regularly, but ... Eric
All good film developers will make good print
developers. Or at least, I wouldn't be surprised.
I've tested a few. Even D-23, which is about as far
from being a print developer as one might think
possible, does a nice job.
There is a lot of chemistry for development in
film developers. Concentration is not so much the
matter as is activity. Out of the bottle, film developers
are compounded to be slow working. The trick is to further
activate by the addition of sodium carbonate. Pick any film
developer you chose then test it as a print developer with
varying amounts of sodium carbonate.
Compound small amounts and test using minimal solution
volumes. I've just completed a first phase of combined
contrast control developer, bromide, wash aid, wash
scenario testing using 5 x 7 FB with 125ml solution
volumes. For myself one-shot diluted chemistry
requires three minute processing. Dan