A4: Af Activation; A5: Focus Point Illumination - Nikon D4s User Manual

a4: AF Activation

If Shutter/AF-ON is selected, both the
shutter-release button and the B button
can be used to initiate autofocus. Select AF-
ON only to prevent the camera focusing
when the shutter-release button is pressed
halfway.

a5: Focus Point Illumination

Choose from the following focus point display options.
Option
Choose On to display the active focus point in manual focus
Manual focus
mode, Off to display the focus point only during focus point
mode
selection.
Choose On to display the active focus point in C
Continuous
(continuous high-speed) and C
mode
modes.
Choose the brightness of the focus point display in the
Focus point
viewfinder from Extra high, High, Normal, and Low.
brightness
Choose On to display both the selected focus point and the
surrounding focus points in dynamic-area AF mode
Dynamic-area
(0 100). When 3D-tracking is used, a dot will be displayed
AF display
in the center of the focus point (n).
Choose how the active
focus points are
displayed in group-area
Group-area AF
AF (0 101).
illumination
G button ➜ A Custom Settings menu
G button ➜ A Custom Settings menu
Description
(continuous low-speed)
L
Option Focus point display
g
h
H
U
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