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  1. #11
    Andrew O'Neill's Avatar
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    The whole idea of mixing he HCA with selenium was to eliminate the HCA after toning. You're doing it one-step. I personally do not like that way. I dilute selenium with water 1+3 and do the HCA after a water rinse. By diluting the toner with water you can extend the life of the toner. Toner is much more expensive than HCA.

  2. #12
    Ole
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    It is generally not recommended to dilute selenium toner with hypo clear. The toner lasts a very long time, the HCA not. so you'll be wasting good toner...

    A few days ago I decided to intensify an irritatingly flat negative. I bleached in pot.ferri/bromide, then redeveloped in a pyro/carbonate mix. Worked like a dream, gave lots better highlight separatoin, and is reversible in case I don't like the result.
    -- Ole Tjugen, Luddite Elitist
    Norway

  3. #13

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    Quote Originally Posted by Ole
    It is generally not recommended to dilute selenium toner with hypo clear. The toner lasts a very long time, the HCA not. so you'll be wasting good toner...
    this brings up a point: How does one know when the HCA has gone bad? As of right know, I used the fixer as the meter. Fixer just went bad, so my HCA should be bad as well, right?

    By the way, the HCA I used in and following the selenium were fresh...

  4. #14
    Ole
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    Good question - and one I've never thought about!

    Sulfite can oxidise to sulfate, absorb sulfide and turn to thiosulfate, or (eventually) decompose to sulfur and sulfate - just like thiosulfate does.

    I've never been in the habit of using HCA, so the question has never occurred to me. Anyone with any good leads?
    -- Ole Tjugen, Luddite Elitist
    Norway

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