Anthotype with UV light

Discussion in 'Alternative Processes' started by ofofhy, Oct 30, 2006.

  1. ofofhy

    ofofhy Member

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    I am attempting some anthotype prints using some transparencies that I have printed. I mixed some dyes with tomato leaves and germanium petals with isopropanol. Of course, I do all this mixing, and then realize that I don't have a spot that stays sunny all day long during the late-fall and winter months. I have access to a long-wave and short-wave UV light source. Will UV light tend to bleach the pigments or is it better to use the full spectrum of sunlight? I know that complimentary colors will tend to bleach each other out, which makes some sense, but most of these pigments also absorb in the UV. I am currently leaving it overnight under the UV, but if it is worthless to do so, I can go save some bulb life.
     
  2. Fulvio

    Fulvio Member

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    As far as I know anthotypes require very long UV exposure. I once tried it for fun... But the exposure lasted 2 weeks and yet the image was reaaaally flat, laking of real dark areas. Use sun (or available natural light) rather a UV exposure unit.
     
    Last edited by a moderator: Nov 9, 2006
  3. Christopher D. Keth

    Christopher D. Keth Member

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    You definately want to use sunlight for anthotypes. It's not so much that you want the full spectrum or not but one of brightness. You'll have to expose an anthotype for weeks in sunlight and probably indefinately with anything else.
     
  4. jnanian

    jnanian Advertiser Advertiser

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    good luck with that!
    i left a printing frame in the summer sun
    for the whole summer and didn't get an image :sad:
    i used the instructions on the alt photography website ..
    the only thing was, i didn't have poppies, which were suggested

    --john
     
  5. Christopher D. Keth

    Christopher D. Keth Member

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    The best I have used is raspberries. It gives a pretty decent dmax for being juice and very pretty colors.
     
  6. htmlguru4242

    htmlguru4242 Member

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    How long are the exposures with raspberries and how much of them do you use / what solvent?
     
  7. argent42

    argent42 Member

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  8. rwyoung

    rwyoung Member

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    Like Argent suggested but if you can get Everclear, try that! Then if it doesn't work out you can drown your sorrows in some raspberry flavored rot-gut. :rolleyes: