PE's SuperFix is truly super! Tried it yesterday on Kentmere 100 and was very impressed by its speed.
I kept pH slightly acidic as done by PE. Though alkaline pH might improve shelf life of the fixer, I'm afraid that Thiourea might fog the film in alkaline pH.
I kept pH slightly acidic as done by PE. Though alkaline pH might improve shelf life of the fixer, I'm afraid that Thiourea might fog the film in alkaline pH.