Issues with the 7d markii and sigma 1.4 teleconverter

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Marty1967 New Member • Posts: 1
Issues with the 7d markii and sigma 1.4 teleconverter

Has anyone had any issues with the auto focus system on the 7d mark ii not consistently focusing when using the 500mm f/4 dg os hsm lense in conjunction with the sigma 1.4 teleconverter? I believe I have narrowed it down to it being an issue with the teleconverter. Any ideas or suggetions as to why this is happening ?

Canon EOS 7D Canon EOS 7D Mark II
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