jan2505 from Lloyd Erlick, ... >What is the drawback of such "pF shock" with actual emulsions ? > >Claudio Bonavolta >http://www.bonavolta.ch ... I've never heard of or experienced any, to my knowledge. How much of a drawback could there be, given that it is the norm for a print to be transferred directly from an alkaline developer solution to an acetic acid stop bath. Personally, I use a quadruple water rinse as a stop bath. Some people might say the developer continues to work if not stopped by acid, so as I dilute it with my successive rinses, it is still working. No doubt true, but it takes three minutes to develop the print at full strength in the developer step. How much development can a severely diluted (soft working, in my case) developer provide, anyway, in the few seconds before most of the residual developer washes away? It is considered quite normal to attack the face of a wet print with a filthy squeegee. My opinion is that concern about pH 'shock' is theoretical only, and not a practical concern to anyone who makes black and white prints by hand, especially if they put gloves on those hands and then touch the print ... regards, --le ________________________________ Lloyd Erlick Portraits, Toronto. voice: 416-686-0326 email: portrait@xxxxxxxxxxxx net: www.heylloyd.com ________________________________ -- ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.