FSA toner

Discussion in 'B&W: Film, Paper, Chemistry' started by NewMexican, Sep 5, 2005.

  1. NewMexican

    NewMexican Member

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    I am working ,y way through Tim Rudman's book and am intrigued by this yoner. Is it (in kit form from Speedibrews) or thiourea dioxide available in the US. I would like to try it.
    Charlie Murray