Acceleration/deceleration tracking

This sets the tracking sensitivity for moving subjects whose speed can suddenly change dramatically by starting or stopping suddenly, etc.

[0] - Suited for subjects that move at a fixed speed.

[+2 / +1] - Effective for subjects having sudden movements, sudden acceleration/deceleration, or sudden stops. Even if the moving subject’s speed suddenly changes dramatically, the camera continues to focus the target subject. For example, for an approaching subject, the camera becomes less prone to focus behind it, which would result in a blurred subject. For a subject stopping suddenly, the camera becomes less prone to focus in front of it. Setting +2 can track dramatic changes in the moving subject’s speed better than with +1.

However, since the camera will be sensitive to even slight movements of the subject, the focusing may be unstable momentarily