Hi, I have some 4x5 Tri-x film that was exposed about 10 years ago. I would like to process it, but need a little advise as to how to proceed. I use HC-110 dilution B for all of my current Tri-x film. I have been told that adding some 1% benzotriazole to the developer may cut some of the fog, but I also know that it would produce a thin negative unless the development time was increased. Any information as to how to proceed would be appreciated.

-- Mike Fink (south8@aol.com), June 04, 2001

Answers

I would add the Benzo and add 15% - 20% time also.

-- Scott Walton (scotlynn@shore.net), June 04, 2001.

Thanks Scott. How much 1% benzotriazole would you add to a quart of developer working solution? Thanks again.

-- Mike Fink (south8@aol.com), June 04, 2001.

I would suggest starting with a minimal amount of 1% benzotriazole-- perhaps as little as 1 ml per 500 ml of dilution B. Increase your development time by a minute or two, develop a single negative and see what your results are like, then adjust anti-fog and developing time accordingly. I have developed old film before--base plus fog was higher, but I got useable negatives without making any changes to my developer. So I advise being conservative with the anti-fog.

-- Ed Buffaloe (edb@unblinkingeye.com), June 05, 2001.