F2: Assign Fn Button - Nikon D750 User Manual

f2: Assign Fn Button

Choose the role played by the Fn button,
either by itself (Press) or when used in
combination with the command dials
(Press + command dials).
❚❚ Press
Selecting Press displays the following options:
Option
q
Preview
r
FV lock
B
AE/AF lock
C
AE lock only
E
AE lock (Hold)
F
AF lock only
A
AF-ON
s
Flash off
356
G button ➜ A Custom Settings menu
During viewfinder photography, you can preview
depth of field while the Fn button is pressed
(0 92). During live view photography, 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 (0 56).
Press the Fn button to lock flash value (built-in
flash and compatible optional flash units only,
0 190, 435). Press again to cancel FV lock.
Focus and exposure lock while the Fn button is
pressed.
Exposure locks while the Fn button is pressed.
Exposure locks when the Fn button is pressed,
and remains locked until the button is pressed a
second time or the standby timer expires.
Focus locks while the Fn button is pressed.
Pressing the Fn button initiates autofocus. The
shutter-release button can not be used to focus.
The flash will not fire in photos taken while the Fn
button is pressed.
Description