A6: Ae-L/Af-L For Mb-D80; A7: Live View Autofocus - Nikon D90 User Manual

a6: AE-L/AF-L for MB-D80

Choose the function assigned to the AE-L/AF-L
button on the optional MB-D80 battery pack. This
option is available in all shooting modes.
Option
AE/AF lock
B
(default)
C AE lock only
F AF lock only
AE lock
E
(Hold)
*
A AF-ON
r FV lock
Focus point
x
selection
* Pressing 2 when these options are highlighted displays a Focus point selection sub-menu.
If On is selected, the focus point can be chosen by pressing the MB-D80 AE-L/AF-L button
and rotating the sub-command dial.

a7: Live View Autofocus

L
This option (available in all shooting modes) determines how the focus point for
autofocus is selected in live view. Choose from the following options:
Mode
8 Face priority
9 Wide area
! Normal area
176
*
Focus and exposure lock while the MB-D80 AE-L/AF-L button is pressed.
*
Exposure locks while the MB-D80 AE-L/AF-L button is pressed.
*
Focus locks while the MB-D80 AE-L/AF-L button is pressed.
Exposure locks when the MB-D80 AE-L/AF-L button is pressed, and
remains locked until the button is pressed a second time or the exposure
meters turn off.
Pressing the MB-D80 AE-L/AF-L button initiates autofocus.
Flash value for the built-in flash and optional SB-900, SB-800, SB-600,
SB-400, and SB-R200 flash units locks when the MB-D80 AE-L/AF-L
button is pressed (pg. 198), and remains locked until the button is
pressed a second time or the exposure meters turn off.
The focus point (pg. 56) can be selected by pressing the MB-D80 AE-L/
AF-L button and rotating the sub-command dial.
The camera automatically detects and focuses on portrait subjects
facing camera. Use for portraits; default for k and o modes.
Use for hand-held shots of landscapes and other non-portrait subjects.
The focus point can be selected manually. Default for i, j, l, m,
and modes.
M
Use for pin-point focus on a selected spot in the frame. A tripod is
recommended. Default setting for n mode.
Description
Description
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