Particles? I've been using TF4 for both film and paper for many years in numerous developers with no problems whatsoever. You do need to gently shake the
the bottle before pouring the stock solution to be diluted. And with new bottles, you might need to use a stir stick first. That is the only nuisance issue I can think of. If you are losing bits of emulsion, either you are developing way too warm, or else you're film is very old. Of course, I'm assuming you've correctly diluted the TF4 and are not using the concentrate directly. Always dilute and mix just enough concentrate immediately prior to the work session. If settling occurs during that, just gently agitate your bottles or trays right before the film goes to the fixer. I usually give TF4 a tiny swish just before pulling film from
the stop bath, which should be mild to prevent offsetting the alkalinity of the TF4. But I have no background with TF5. Why not just call the chemist at
Formulary?
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