Nikon D7100 - Manual (Page 284)

256
U
Choose the role played by the A AE-L/AF-L button, either by itself
(Press) or when used in combination with the command dials
(Press + command dials).
❚❚Press
Selecting Press displays the following options:
❚❚Press + Command Dials
Selecting Press + command dials displays the following options:
f4: Assign AE-L/AF-L Button
G
button ➜ A Custom Settings menu
Option Description
B
AE/AF lock Focus and exposure lock while the A AE-L/AF-L button is pressed.
C
AE lock only Exposure locks while the A AE-L/AF-L button is pressed.
E
AE lock
(Hold) Exposure locks when the A AE-L/AF-L button is pressed, and remains locked
until the button is pressed a second time or the standby timer expires.
F
AF lock only Focus locks while the A AE-L/AF-L button is pressed.
A AF-ON
The A AE-L/AF-L button initiates autofocus. The shutter-release button can
not be used to focus.
r
FV lock
Press the A AE-L/AF-L button to lock flash value (built-in flash and
compatible optional flash units only, 0 125, 305). Press again to cancel FV
lock.
None Pressing the button has no effect.
Option Description
5
Choose
image area Press the A AE-L/AF-L button and rotate a command dial to choose an
image area (0 63).
w
Choose non-
CPU lens
number
Press the A AE-L/AF-L button and rotate a command dial to choose a lens
number specified using the Non-CPU lens data option (0 149).
None
No operation is performed when the command dials are rotated while the
A AE-L/AF-L button is pressed.