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Thread: Squealing lens noise with Metabones IV

  1. #1
    Join Date
    Jun 2015
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    Squealing lens noise with Metabones IV

    Yesterday I was shooting with my Canon 70-300L and sony A7R II. The lens seemed to work fine, but then started making a high pitched squealing noise (AF and IS used). Has anybody experienced this before? or know what might be causing the issue?

    I stopped using the lens immediately. I tried replicating the issue today but have not succeeded. Using Metabones IV, BT4 version, 0.41 firmware, green mode.

    Stephen Bay

  2. #2
    Senior Member Slingers's Avatar
    Join Date
    Feb 2013
    Sydney, Australia
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    Re: Squealing lens noise with Metabones IV

    I haven't had the lens make any noise before. What I get with my metabones is a grinding noise when attaching the lens. It always makes me worried but I've seen no damage.

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