IR enabled Sony DSC-V3 just needs eyeglases.

Discussion in 'Digital Photography' started by Chuck Olson, Nov 11, 2007.

  1. Chuck Olson

    Chuck Olson Guest

    A number of posts have appeared in various places describing how a switch
    can be installed to kick the IR-reject filter out of the optical path when
    the camera is in its fully capable visible-light mode. This should defeat
    the childish restriction on infrared operation Sony imposed due to
    ill-perceived public outcry. But besides crippling the exposure system, Sony
    installed one additional safeguard to limit infrared operation in the
    visible-light mode and that is to place a hard digital limit on the range of
    the autofocus system. As a result, taking the IR filter's glass plate out of
    the optical path makes the camera a little nearsighted. The needed
    corrective lens has almost zero power to create distortion, but at -0.5
    diopter, it's enough to restore focus at scenic distances, where the strange
    rendering in infrared light is most fascinating.
    Chuck Olson, Nov 11, 2007
    #1
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