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Photographers' Formulary TF-4 Archival Rapid Fixer is a great fixer for paper and most films.
TF-4 works well in batch processing, fixing resin-coated paper in 30 seconds and fiber-based paper in 60 seconds.
You can also use TF-4 on TMax films, fixing for 6 minutes to remove the magenta stain. it is recommended to run 20 rolls of film to a 1-liter working solution.
TF-4 fixer does not require a stop bath or a hypo-clearing agent and has little odor when mixed with distilled water.
TF-4 is a non-hardening fixer, making it excellent for prints that are toned or retouched. Most modern film emulsions have a built-in hardener, eliminating the need for a hardener in a fix.
The stock solution, which has a shelf life of 1 year, is diluted 1:3 to make the working solution. The working solution has a shelf life of 6 months.
TF-4 is recommended in The Book of Pyro for PMK negatives by Gordon Hutchings because an alkaline fixer solution such as TF-4 helps achieve maximum pyro stain on a negative.
A conventional rapid fix may diminish the staining effects of the pyro and PMK formula.
This will make 1 gallon of Working Solution.