Zone Plate

Discussion in 'Extreme, Retro, Instant and More' started by exitium, Aug 3, 2012.

  1. I am getting a little confused by zone plate construction involving a laser printer and overhead transparencies. The various zone plate generators have a spot for focal length-I assume this is for when one is printing the zone plate on plain paper and photographing with a camera?
    Am I right to assume that my focal length then would be the distance from the film plane as no lens will be involved with my zone plate construction?
    Also, I am right to generate the zone plate to a scale of 1X given there will be no re-photographing in my specific case?
    Thanks,
    Peter
     

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