Archived posting to the Leica Users Group, 2000/01/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]When "rolling" a modification of PMK is recommended. PMK is said to oxidize rapidly under tube conditions. Adding Vitamin C corrects this (but reduces stain under tray conditions). The formula called "Rollo Pyro" for obvious reasons is available from Bostick & Sullivan. The Vitamin C formula is published in this article from the JOBO quarterly if you wish to mix your own: http://www.jobo-usa.com/jobofoto/jq/jq9804.htm Jonathan Borden > Dear All, > > I apologize for the off topic post, but I need some advice. I currently am > shooting 4x5 FP-4 and HP-5 that I develop in PMK in trays. This is getting a > bit tedious and uses a lot of my time, which is in short supply. I am > thinking of using a Jobo CPP-2 with one of the 3000 series Expert drums. > Gordon Hutchings in "The Book of Pyro" says this combination works well. > Before parting with a substantial amount of money for a film processor, I am > wondering if any of you have experience with doing this. Any information > will be appreciated, maybe off list? > > Thanks in advance, > Richard Wasserman