D200 Firmware Update Fixes Sigma Lens Fault.

Discussion in 'Digital Photography' started by George Dingwall, Oct 11, 2006.

  1. Hi All,

    When the Nikon D200 first came out it was found that the AF-ON button
    on the D200 did not work with Sigma HSM type lenses. The cure for this
    was to send your lenses back to Sigma for re-chipping.

    I decided not to send my two HSM lenses back as they could not give
    any guarantee when they would send them back.

    Now the latest V2.0 Firmware upgrade for the D200 has recently been
    released, and it turns out that an undocumented feature of the upgrade
    is the AF-ON button now works with the HSM type of sigma lenses.

    So if you have a D200 and Sigma lenses with this problem you might
    want to upgrade your D200 firmware before you send your lens back to
    Sigma for re-chipping.

    The upgrade is here;


    Hope this helps.
    Bye for now,

    George Dingwall

    Invergordon, Scotland

    George Dingwall, Oct 11, 2006
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