If your subject is stationary, One-shot or Single Autofocus (AF-S) uses a single point rather than multiple ones to determine what to focus on.
If your subject is stationary, One-shot or Single Autofocus (AF-S) uses a single point rather than multiple ones to determine what to focus on. This option allows you to aim at a single point (e.g. the animal that is your subject), ensuring the camera focuses nowhere else.