![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_4df03236-fbc6-47db-afbb-9d649197b73b_small.jpg)
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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