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Thread: A curious lens adaptor - any ideas?

  1. #1
    xpatUSA's Avatar
    Join Date
    Feb 2012
    Location
    Texas
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    3,099
    Real Name
    Ted

    A curious lens adaptor - any ideas?

    Hello,

    Recently took delivery of a used 50mm Nikon AF-mount macro lens.

    Instead of a cap, this was on the back:

    A curious lens adaptor - any ideas?
    A curious lens adaptor - any ideas?

    The thread measures 15mm and does look metric. But what equipment does it mate with?

    Thanks,

    Ted

  2. #2

    Join Date
    Mar 2009
    Location
    West Yorkshire
    Posts
    156

    Re: A curious lens adaptor - any ideas?

    Maybe a webcam? Used for astrophotography perhaps?
    It is possible to modify some webcams for long exposure.

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