![Low-angle-close-up-of-a-focus-motor-on-a-professional-cinema-camera-calibrating,-turning-the-focus-ring-of-a-high-end-spherical-prime-lens](https://videocdn.cdnpk.net/harmony/content/video/partners1364/thumbnails/BB_d56d5954-27c0-496b-92ce-8ff3f53bbb7a_small.jpg)
Low angle close-up of a focus motor on a professional cinema camera calibrating, turning the focus ring of a high end spherical prime lens
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