Time for New Tri-X at EI 250

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edbuffaloe

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I need a developing time for the new Tri-X rated at 250 in a staining developer such as PMK, Pyrocat-HD, or WD2D+. Anyone?
 

juan

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I don't know if this helps, but I've been developing OLD Tri-X rated at 200 for printing on Azo in Pyrocat HD 2:2:100, 70F, in trays for 14 minutes. What I read in other threads is that people are using their old Tri-X times for new Tri-X in developers such as Rodinal, HC-110, D-76. The consensus seems to be that Kodak's published times are wrong (too short) for some reason.
juan
 

Tom Duffy

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Ed,
I've been developing new tri-x (ei 160) a bit longer than the old tri-x. in pyrocat HD 2:2:100, in a Jobo, at 68F, I've been developing for 7min for high contrast subject and 9:30 for low contrast subjects. if I do the math right, that's about 16% longer than the times I used for old tri-x. I print on multi contrast paper.
Take care,
Tom
 

Black Dog

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In PMK, I've used 13 mins at 320 -haven't noticed a lot of difference between the old and the new to be honest. This is for 120 in a tank BTW.
 

fhovie

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PMK for 11 minutes at 70F for ASA200 TRI X I get N contrast on Grade 2 fiber paper with a condenser enlarger. With formulary D65 developer.
 
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edbuffaloe

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Thanks to everyone who responded. I came away with the impression that my best bet was to start with my old times for Tri-X, which was 15 minutes in PMK at 70 degrees (EI 250). But, never being able to leave well enough alone, I decided to use Pyrocat-HD and semi-stand development. So, following Sandy King's instructions, I developed for 24 minutes at 70 degrees, with one minute continuous agitation at the beginning and 10 seconds every three minutes thereafter. The negatives came out just fine. This was 35mm roll film, since both my medium format cameras were down at the time.
 
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