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Road ruts with Jobo
The problem is with 120 roll film in the 2500 series drums, although I do not get even development when I process 8x10 film in the 300x series drums. On 1/21/04 4:25 PM, in article BC34587A wrote: Hi, I'm using a Jobo cpp-2 processor I am getting an uneveness in development which jobo refers to as "road ruts" that is a linear uneveness that runs the long length of the film, in the direction of the rotation. It's dense on the edge, then lighter 1/3 of the way in, then denser, then lighter then denser. Jobo says to slow the speed of the rotation down from the 75 rpm that the manual suggests, so I have slowed it to about 50rpm, but I am still getting the ruts. My film is 120 tmax 100, the developer is d-76 1:1, I am using a 5 minute presoak, 4 rinses after fix and kodak rapid fixer. No stop bath. I shoot primarily very high key scenes and still lifes where eveness of background is critical. Any help with this problem would be greatly appreciated, thanks. Brian Kosoff kosoff.com |
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