I remember reading some years back about the practice of using selenium toner as a negative intensifier. As I recall, the general wisdom was that doing so would give you about one-half paper grade's worth of increase in contrast.
Recently I made a negative or two that could use such a treatment. Of course, any explanation of the exact method is lost in the mists of time (which are rather thick at my house these days).
I could just try printing on higher-contrast paper, but I have two identical negatives, so I can experiment with one.
Then, in a recent thread, someone has pointed out that selenium toner removes pyro stain from developed negatives. Never heard that before, but perhaps I haven't been paying attention.
Since my film is developed in Pyrocat-HD, it sounds like intensifying the neg in KRST would be counter-productive.
So:
Can anyone explain the accepted method for intensifying negatives in selenium toner?
And:
If you've observed the destruction of pyro stain, by the use of selenium toner as intensifier, can you explain further?
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