paul ron said:Ian,
Can you post some emulsion formulas so if the film manufacturers go under, we can make our own film? I'd love to try my hand at emulsions.
I could post a number of emulsion formulae, for films and paper, after all the pre-war Agfa formulae were published after the war, and somewere I have photocopies, plus I could tell you how to make them easily on a smale scale.
However the emulsions I made were patented and although lapsed, still commercially secret 19 years after they were last produced, and strangely the later tweaks and advances were never written down properly, just notes on the lab wall, I was manufacturing batches of emulsion twice a week and it was second nature.
As I'm in the middle of a huge clearout at home I'll come across or dig out the Agfa data and post here in the cooking section in the next few weeks.