Response to 35mm Tri-X and HC110 (Dil B) Trouble.

Try 6.75 minutes at 68F with a EI of 200. You mentioned how your tests looked but you did not mention how your film exposed to actual photographic subjects looked. If you test a roll of film with all Zone I exposures your developer activity will be too high for a realistic test. A couple of ways to test roll film is to test Zone I, V and VIII at the same time, another approach is to have only 4 or 5 Zone I and the rest of the roll be real pictures. Also I don't beleive it is necessary to be within 1/3 or 2/3 stops on roll film because your aperature won't always have small enough adjustments to get you that close anyway, just error on the side of overexposure within limits.

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