Nikon Z 7 Reference Manual page 310

Option
F
AF lock only
E
AE lock (Hold)
C
AE lock only
B
AE/AF lock
p
Zoom on/off
C
Take photos
1
Record movies
J
Choose image
area
m
White balance
h
Set Picture
Control
286 Menu Guide > A Custom Settings
Focus locks while the control is pressed.
Exposure locks when the control is pressed, and
remains locked until the control is pressed a
second time or the standby timer expires.
Exposure locks while the control is pressed.
Focus and exposure lock while the control is
pressed.
Press the control to zoom the display in on the
area around the current focus point. Press the
control again to zoom out.
Press the shutter-release button all the way
down to take a photograph with an aspect ratio
of 16 : 9.
Press the shutter-release button halfway to focus
(autofocus mode only) and press it all the way
down to start or end movie recording. The
shutter-release button cannot be used for other
purposes in movie mode. The shutter-release
button on an optional wireless remote controller
or remote cord functions in the same way as the
camera shutter-release button.
Press the control and rotate a command dial to
choose the image area. Note that the image area
cannot be changed while recording is in
progress.
Press the control and rotate the main command
dial to choose a white balance option (in some
cases, a sub-option can be selected using the
sub-command dial).
Press the control and rotate a command dial to
choose a Picture Control.
Description