Nikon D5 - Manual (Page 125)

125
Choose the role played by the Fn button on the optional wireless
remote controller.
Assign Remote (WR) Fn Button
G button
➜ B setup menu
Option Description
q
Preview
During viewfinder photography, you can preview
depth of field while the Fn button is pressed. During
live view, you can press the button once to open the
lens to maximum aperture, making it easier to check
focus; pressing the button again restores aperture to
its original value.
r
FV lock
Press the Fn button to lock flash value (supported flash
units only). Press again to cancel FV lock.
B
AE/AF lock
Focus and exposure lock while the Fn button is
pressed.
C
AE lock only Exposure locks while the Fn button is pressed.
D
AE lock (Reset
on release)
Exposure locks when the Fn button is pressed, and
remains locked until the button is pressed a second
time, the shutter is released, or the standby timer
expires.
F
AF lock only Focus locks while the Fn button is pressed.
A
AF-ON Pressing the Fn button initiates autofocus.
h
IDisable/
enable
If the flash is currently off, front-curtain sync will be
selected while the Fn button is pressed. If the flash is
currently enabled, it will instead be disabled while the
Fn
button is pressed.