Archived posting to the Leica Users Group, 1999/08/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Marc, many thanks for your answer but, please , excuse me for my slow brain. I want to know a basic concept: is Pyro a chemical component that I must add to a normal developer (I'm thinking to pirogallolo, like I know) or is Pyro a chemical formula for a developer? Can you tell me something about the chemical composition (the acronimous PMK stay for?) or any other notice of this much interesting news? Are there some books about the argument that I can find in Italy? Thanks in advance, Giorgio Ferrari "fergio@galactica.it"