Nikon D3S - Manual (Page 326)

300
U
Choose the number of focus points available for manual focus-
point selection.
Choose the function performed when the
B button is pressed.
a8: AF Point Selection
G button
➜ A Custom Settings menu
Option Description
B 51 points
Choose from the 51 focus points
shown at right.
A 11 points
Choose from the 11 focus points
shown at right. Use for quick focus-
point selection.
a9: AF-ON Button
G button ➜ A Custom Settings menu
Option Description
A AF-ON Pressing the B button initiates autofocus.
B AE/AF lock
Focus and exposure lock while the B button is
pressed.
C AE lock only Exposure locks while the B button is pressed.
D
AE lock (Reset
on release)
Exposure locks when the 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.