But not as many use no stop what so ever.
I don't bother with it at all. Develop then fix,
film and paper. I use all chemistry one-shot so
am not concerned with a build up of developer
in the fixer. Also ph shift is no issue. An acid
stop is for the purpose of maintaining the
acidity of an acid fix.
The short rinse in an acid stop does not wash out
the developer any quicker than plain water but the
acidity of the fixer keeps the accumulated developer
in the fix from being active.
The accumulation of developer is an issue with those
who use an alkaline fixer where-in the accumulated
developer is always active. Dan

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