Technical Farm Sigma Cine Lens Follow Focus Motor Mount - Newsshooter
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My focus ring doesn't seem to do anything (Sigma 18-50mm f2.8) Is this because the a6k doesn't support it or does the camera have to be in a specific mode. I'm in
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SIGMA AUTO FOCUS AF 1-3,8 F=75-200MM multi-coated | eBay
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