Configuring the AF operation when the shutter button is pressed (KAF by half-pressing 6)

You can choose whether the camera focuses when the shutter button is pressed halfway.

MENU U AF U 1. AF U KAF by half-pressing 6

S-AF	Set the AF operation for when the AF mode is [S-AF]. [No]: The camera does not start AF operation when the shutter button is pressed halfway. [Yes]: The camera starts AF operation when the shutter button is pressed halfway. If you press the shutter button halfway while pressing the AF-ON button, autofocus will be continued.
C-AF/ C-AF+TR	Set the AF operation for when the AF mode is [C-AF] or [C-AF+TR]. [No]: The camera does not start AF operation when the shutter button is pressed halfway. [Yes]: The camera starts AF operation when the shutter button is pressed halfway. If you press the shutter button halfway while pressing the AF-ON button, autofocus will be continued.

S-AF

Set the AF operation for when the AF mode is [S-AF].

[No]: The camera does not start AF operation when the shutter button is pressed halfway.

[Yes]: The camera starts AF operation when the shutter button is pressed halfway. If you press the shutter button halfway while pressing the AF-ON button, autofocus will be continued.

C-AF/
C-AF+TR

Set the AF operation for when the AF mode is [C-AF] or [C-AF+TR].

[No]: The camera does not start AF operation when the shutter button is pressed halfway.

[Yes]: The camera starts AF operation when the shutter button is pressed halfway. If you press the shutter button halfway while pressing the AF-ON button, autofocus will be continued.