In continuous-servo AF (AF-C), the camera continues to adjust focus to compensate
for changes in the distance to the subject while the shutter-release button is pressed
halfway. This makes it a good choice for subjects that are in motion.
Autofocus mode can be selected by pressing the AF-mode button and rotating
the main command dial until the desired setting is displayed in the viewfinder and
control panel.
1: AF-mode button
View information on functions related to Focus Mode (Viewfinder Photography): AF-C.