Response to Effect of Rodinal dilutions?

AGfa never published their receipe 9. I have a Agfa /Orwo receipe book from the 1970s. The receipes that were marketed were left out, such as 9 (Rodinal), 49 (Atomal FF), 102 (Neutol) and others. There are far mor "authentic" Rodinal receips than Bill and Steve publish, but none of them has been authenitcated by AGFA. Some time ago I had promised Bill Troop to call Agfa and to try to persuade them to publish the receipe, but have not found time so far. This is a good chance to try now. If you buy R09 you will find its colour to be very dark blue to black. If you follow the "traditional" receipes you also won't get a clear solution like current Agfa Rodinal. I suppose that Bill and Steve's receipe might be close to formula 9. In the 1950s and 1960s almost every German film maker had "their" Rodinal.

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