What is a Focus Puller?
A Focus Puller is also sometimes known as the 1st Assistant Cameraperson (1st AC). The Focus Pullers works as part of the Camera Department and are responsible for maintaining image sharpness.
Image sharpness is maintained through the act of pulling focus. This is whereby the lens’ focus distance is changed depending upon where the subject has moved. Or, for example, it could be shifting the focus from one subject to another.