Focusing options to check out
There are ways and means to controlling focus
SINGLE-SHOT OR SERVO AF?
For general photography, use single-shot AF (S-AF) mode, where the camera focuses on the subject when the shutter or AF-On button is pressed and stays locked on until the shutter is pressed all the way down. For moving subjects, set Servo or C-AF: the camera will try to track focus as long as the shutter release is partially depressed. With complex AF zone systems, subject-detect and eye-tracking, there’s much more involved in setting up for effective C-AF than meets the eye.