Nikon D3100 - Manual (Page 162)

146
g
Choose the roles played by the Fn and AE-L/AF-L buttons.
❚❚Fn Button
Choose the role played by the Fn button. The item currently
selected is shown by a white-on-black icon in the information
display.
❚❚AE-L/AF-L Button
Choose the role played by the AE-L/AF-L button.
❚❚AE Lock
At the default setting of Off, exposure only locks when the
AE-L/AF-L
button is pressed. If On is selected, exposure will also
lock when the shutter-release button is pressed halfway.
Buttons G button
➜ B setup menu
Option Description
v
Image
quality/size Press the Fn button and rotate the command dial
to select image quality and size (
0 64).
w
ISO
sensitivity Press the Fn button and rotate the command dial
to select ISO sensitivity (
0 71).
m
White
balance
Press the Fn button and rotate the command dial
to select white balance (P, S, A, and M modes only;
0 87).
!
Active
D-Lighting
Press the Fn button and rotate the command dial
to select an Active D-Lighting option (P, S, A, and M
modes only;
0 85).
Option Description
B AE/AF lock
Focus and exposure lock while the AE-L/AF-L
button is pressed.
C AE lock only
Exposure locks while the AE-L/AF-L button is
pressed.
F AF lock only Focus locks while the AE-L/AF-L button is pressed.
E
AE lock
(hold)
Exposure locks when the AE-L/AF-L button is
pressed, and remains locked until the button is
pressed a second time or the exposure meters
turn off.
A AF-ON
The AE-L/AF-L button initiates autofocus. The
shutter-release button can not be used to focus
except when AF-F is selected in live view or
during movie recording.
Fn button
AE-L/AF-L button