Hi Everyone,
I'm almost going insane trying to figure out what I'm doing wrong in my black and white developing. I'm quite stumped. The bottom (opposite notch) 3/4" is lighter (thinner) than the rest of the film. There is still full detail and it's maybe a stop or two underexposed / underdeveloped that the rest of the film.
The details.....
I shoot 4x5 T-MAX 100 Readyload, developed in D-76 stock (68 - 70 deg) in a Jobo 3010 on a Beseler motor base, carefully leveled and pre-soaked. Typically only one out of 10 sheets in my batch will have this issue. It's a fairly strong dividing line of normal / light portion on the sheet, but not as strong as if I didn't pull the dark slide far enough. I'm not near a scanner right now, so I can't post what it looks like. Maybe tonight.
I can't think of anything in the camera that would block light to give me a thinner negative 3/4" straight across the bottom, and still have detail. I'm thinking it's something in the development.
The odd thing is that I've had similar film developed from a pro lab, with the same results where every 10th or so sheet has a light 3/4" edge. I believe they Jobo process their film as well. I haven't discussed it with them yet.
I never see this issue on any of my color film that I shoot (all developed by an outside lab).
Any ideas?
Thanks!
Jimmy B
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