FSA (i.e. thiourea dioxide) Toning

Discussion in 'Darkroom Developing and Printing' started by peter.desmidt, Jun 28, 2007.

  1. Has anyone had any experience with FSA toning of prints or negatives?
    According to Dr. Rudman, "When FSA toner redevelops the halides that
    have been regenerated in the bleaching stage, it does so to a
    different form, producing so-coalled 'colloidal' silver, consisteing
    of very small particles of different sizes and shapes." [The
    Photographer's Toning Book, p94] Dr. Rudman only talks about FSA
    print toning in his book, but I'm more interested in negative toning.
    In particular, I'm interested in what the toning would due to fairly
    course grained film. Namely, will it make the grain smaller? Will it
    give an interesting look? Does anyone have any experience with this?
    peter.desmidt, Jun 28, 2007
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