Odd expired Azo effect

Discussion in 'B&W: Film, Paper, Chemistry' started by GregW, May 19, 2013.

  1. GregW

    GregW Member

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    Today I made some prints with some Azo from the late 1930s. Developing it in Ansco 130 with TAF-1. I'm getting a negative image? In other words, it's functioning as a direct positive at this point? I'm curious what is happening to cause this? It's grade 3, has a yellow label, single weightÂ…
    Anyone else had expired paper do this?
     
  2. ctsundevil

    ctsundevil Member

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    I have a box of Kodabrome that behaves the same way. I don't have any idea why it does that.
     
  3. GregW

    GregW Member

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    Have you tried your Kodabrome in a pinhole camera? or as a paper negative in some other camera?