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  1. #1
    Junior Member

    Unable to change focus options with Sigma 18-200 mounted

    Up until two months ago with my D5100 I could select whatever focus option I chose with any lens. Starting two months ago, when my Sigma 18-200 is mounted the mode is Manual focus, and the focus mode selection option is grayed out so that I can't change it. When I mount my Nikon 50 f1.4 things are as they should be.
    I'd appreciate your thoughts


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  2. #2
    Junior Member

    Re: Unable to change focus options with Sigma 18-200 mounted

    Sorry guys. As is often the case, asking the question gave me the answer. In filling out the profile for this forum when listing lenses I came across my new version of the Sigma 18-200 which has no problem with focus modes. I didn't realize that I had switched the two 18_200s.



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