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rack focus

A technique that uses shallow focus (shallow depth of field) to direct the attention of the viewer forcibly from one subject to another. Focus is pulled , or changed, to shift the focus plane, often rapidly, sometimes several times within the shot.

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rack focus

A shot where focus is changed while shooting. Unlike a Follow Focus shot, a rack focus shot is usually done not from the necessity of keeping someone in focus but to shift attention from one thing to another.
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