Originally Posted by
Doremus Scudder
Welly,
The green in your fix is either left-over anti-halation dye or one of the sensitizing dyes in the emulsion. FWIW, T-Max films tend to turn my fixer slightly pink.
The dyes should in no way negatively affect the activity of the fixer.
I assume you are doing clip tests before each batch anyway in order to determine fixer activity and arrive at a correct fixing time (plus know when the fixer is exhausted). If the clip test is fine, so is the fix, regardless of the color.
If you're not doing clip tests, I'd advise you to start. Toss a piece of scrap film in the fix and note the time it takes to clear. Fix for 3x the clearing time, toss the fix when the clearing time reaches twice that in fresh fix. That's all there is to it; it's easy and accurate and you never have to worry about underfixing again.
Best,
Doremus
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