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  1. #1
    Jim Moore's Avatar
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    Pinhole / Zone Plate / What's the difference?

    Could someone please tell me what the difference between a Pinhole and a Zone Plate is?

    Thanks!

    Jim
    "You miss 100% of the shots you don't take"...Wayne Gretzky

  2. #2

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    hi jim

    about 1/2way down this page you will see a zone plate.
    http://www.pinholeresource.com/agora/agora.cgi
    it looks like a "bullseye" , and can give you a beautiful glowing image.

    if you have a lubitel 166 ... ( the tlr lomo )
    http://cgi.ebay.com/ws/eBayISAPI.dll...835662213&rd=1
    the zone plate will fit perfectly in front of the shutter.

    pinholeresource sells zone plates and laser - drilled pinholes

    sorry i didn't really answer your question ..
    i was going for the picture is worth 1000 words
    Last edited by jnanian; 08-30-2004 at 05:19 PM. Click to view previous post history.

  3. #3
    glbeas's Avatar
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    Ed Sukach's links to diffraction related articles explains things very well in this thread.

    http://www.apug.org/forums/showthrea...t=pinhole+work
    Gary Beasley

  4. #4

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    Practically, a zone plate is faster than a pinhole, but less sharp. Also, the zone plate imparts a kind of "glow" to highlights. A zone plate has an ideal focal length, thus can be focused for a particular subject distance, but focusing is not absolutely necessary to produce a usable image.

    Some examples of my zone plate images: http://www.ellingerphoto.com



 

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