Since I was the one who mentioned naively breaking the 1 liter barrier above let me explain how I came to do so and what has been my experience. In August 2004 I took a platinum workshop from Bob Herbst. I was using a CPP-2 with Expert drum to develop 4x5. He said I should bring pyro stained negatives to the workshop. At his suggestion I started using Rollo Pyro from Bostich & Sullivan. Though I don’t print platinum now, I have continued using Rollo Pyro primarily for the edge effect as I have moved into larger formats. I now shoot 8x10 developing them in the Expert drum and 7x17 developing two of them at a time in an extended 2500 series drum. This past year I shot 250 sheets of 7x17 and 100 sheets of 8x10. I have no idea if this is heavy or light use of the gear.
The Rollo Pyro instructions say ”We’ll describe a typical processing sequence to run five sheets of 8x10 in a Jobo drum rotating on the processor….
“Measure out 15 ml of Rollo Pyro solution A in a small graduate, 30 ml of solution B in a second graduate, and 1 liter of water in a large graduate….”. I innocently assumed they knew what they were talking about.
I have been using this mix for both 8x10 and 7x17 ever since at the volume of film mentioned above. To date there have been no problems, but of course that could fall apart tomorrow. I am careful to lift the tank with my hand rather than use the handle. I like the idea of the handle shown recently by our Australian member Large Format Pat
http://www.youtube.com/watch?v=rLJ5ZFld_Q0 and hope he produces those for sale. I was given a spare CPP-2 by a friend as he retired and went digital. If this breaks I certainly will reform before using that.
If it is important to anyone I will be happy to look up what version of CPP-2 I have if you will say what indicates the changes.
John
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