Nikon D300 - Manual (Page 300)

274
U
a10: AF-On for MB-D10
Choose the function assigned to
the
B button on the optional
MB-D10 battery pack.
Option Description
A
AF-ON
(default) Pressing the MB-D10 B button initiates
autofocus.
B AE/AF lock
Focus and exposure lock while the MB-D10 B
button is pressed.
C AE lock only
Exposure locks while the MB-D10 B button is
pressed.
D
AE lock (Reset
on release)
Exposure locks when the MB-D10 B 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 MB-D10 B 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 MB-D10 B button is
pressed.
G
Same as
FUNC. button The MB-D10 B button performs the function
selected for Custom Setting f4 (pg. 302).