Nikon Z8 User Manual page 164

3
Frame the photograph.
Position the main subject near the center of the frame.
4
To focus, press the shutter-release button halfway (i.e.,
lightly press the shutter-release button, stopping when it
is pressed halfway).
The focus point will be displayed in green when the subject
is in focus. If the camera is unable to focus, the focus point
will flash red.
The AF-assist illuminator may light to assist the focus
operation if the subject is poorly lit.
You can also focus by pressing the AF-ON button.
D
The AF-Assist Illuminator
Do not obstruct the AF-assist illuminator while it is lit.
5
Without lifting your finger from the shutter-release
button, press the button the rest of the way down to take
the picture.
90
Taking Photographs