I have already posted one formula that is a cross between the Agfa Lupex and Kodak Azo formulas here. Ian and I have exchanged notes in that thread on the subject.
Remember, all of these formulas assume the use of three grades of active gelatin, and also require the addition of chemicals to a final operation as well as an overcoat with ingredients. This makes the formulas quite unworkable in most modern home darkrooms.
I am trying to modify them to work in one concerted operation without overcoats and with all chemistry in one layer. I am trying to get these types of formulas to work with fixed amounts of sulfur added in oxidized gelatin.
So, while the old Agfa formulas will be quite useful, they will generally be slow, low in contrast and poor in keeping unless some fixup is applied.
PE |