Choose how quickly focus responds when your subject leaves the focus point or something passes between the subject and the camera in movie mode. Choose from values between 7 (Low) and 1 (High). The higher the value, the slower the response and the less likely you are to lose focus on your original subject when something passes between the subject and the camera. The lower the value, the quicker the camera is to respond to the subject leaving the focus area by shifting focus to a new subject in the same area.
