Nikon Z9 Mirrorless Camera - Manual (Page 604)

604 A Custom Settings: Fine-Tuning Camera Settings
Choose whether the shutter-release button can be used to focus.
• Highlighting [ AF-ON only ] and pressing 2 displays [ Out-of-focus
release ] options.
a6: AF Activation
G button
U A Custom Settings menu
Option Description
[ Shutter/
AF-ON ]
The camera focuses when the shutter-release button is pressed
halfway.
[ AF-ON
only ]
The camera does not focus when the shutter-release button is
pressed halfway.
Option Description
[ Enable ]
Photos can be taken whenever the shutter-release button is
pressed (release priority).
[ Disable ]
• Photos can be taken only when the camera is in focus (focus
priority).
• Focus using the AF-ON button or other controls to which AF-
ON has been assigned.