stig tvenge
6-Oct-2009, 12:11
There are probably treads out there already on the subject, and I belive Ansel A wrote something in his books about it as well ... For the past year I've been doing 4x5 in my darkroom, but I didn't feel fluid and "in control" over the prosess. I had been doing the devoloping in some 6x8'' black blastic containers, one sheet at a time laying flat on the bottom ... But somehow I felt the results where kind of random with manual aggitation, and all the Jobo drum roll stuff I found was expensive and far away .. so I ended up with a platform rocker :
http://www.bellcoglass.net/products/7740-10000.jpg
I want to : do some kind of benchmark, and find out the best speed on rocking, and find out how much or less time I need to get my zones where I want them ... ??? Is there a rule of thumb, or a quick way to test this? I have a zonecard with the 11 zones, and do I just test my way from this? I belive I need a full scale, to do like +1 devlops ... maybe even a graph? Does anyone have something custom to aggitate their tanks, and how did you figure out time and .. intensity ??
http://www.bellcoglass.net/products/7740-10000.jpg
I want to : do some kind of benchmark, and find out the best speed on rocking, and find out how much or less time I need to get my zones where I want them ... ??? Is there a rule of thumb, or a quick way to test this? I have a zonecard with the 11 zones, and do I just test my way from this? I belive I need a full scale, to do like +1 devlops ... maybe even a graph? Does anyone have something custom to aggitate their tanks, and how did you figure out time and .. intensity ??