Video and autofocus don’s usually go hand in hand. After all, focus is a creative decision and the camera, sophisticated as it may be, can’t know where you want to focus in a scene.
What you usually do is pre-mark focus points and change between them using a programmable follow focus or a focus puller (think a person dedicated for shifting focus).
Andra seemed to have solved both issues in an ingenious way. It provides state-of-the-art iPad controlled follow focus, which is nice, but not new. What’s new is the way they pull autofocus and focus shifting. Rather than pre-focus key elements of the shot and mark them, the Andra system allows using a small sensor to continuously monitor a an object in space.
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