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f4: Assign FUNC.
Button
Choose the role played by the Fn button,
either by itself ([FUNC.
button press]) or
when used in combination with the
command dials ([FUNC.
button+dials]).
❚❚FUNC.
Button Press
Selecting [FUNC.
button press] for Custom Setting f4 displays the
following options:
Option Description
q
Preview
*
Press the Fn button to preview depth of field
(pg. 103).
r
FV lock
*
Press the Fn button to lock flash value (built-in flash
and SB-900, SB-800, SB-600, SB-400, and SB-R200
flash units only, pg. 178).
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 exposure
meters turn off.
E
AE lock
(Hold)
*
Exposure locks when the Fn button is pressed, and
remains locked until the button is pressed a second
time or the exposure meters turn off.
F
AF lock only Focus locks while the Fn button is pressed.
s
Flash off
The flash will not fire in photos taken while the Fn
button is pressed.