When the camera lens shifts focus in one continuous shot to objects in different planes of depth one after another, this is called rack focus.
What is search or rack focus?
The act of altering the focal point of a photograph from one subject or object to another. In order to alternatively keep one in focus and the other out of focus while filming a dialogue between two persons, the filmmaker can arrange both of them in the same frame, one in the foreground and one in the background.
What is it called when the foreground and background are both in focus?
The deep focus photography and cinematographic method makes advantage of a large depth of field. Depth of field is the term used to describe the front-to-back range of focus in an image or how much of it seems sharp and clear. When in deep focus, the foreground, center ground, and background are all clearly in focus.
Learn more about focusing technique: https://brainly.com/question/21293623
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