Shooting with the AF Lock
The focus can be locked. After locking the focus, the focal distance will not change even when you release your finger from the shutter button.
Lock the focus.
z Keep the shutter button pressed halfway and press the q button.
XThe focus locks and % appears on the screen.
zIf you release your finger from the shutter button and press the q button again, % will disappear and the focus will unlock.
Compose the scene and shoot.