Nikon D3 - Manual (Page 335)

309
U
a6: Focus Point Illumination
The options in this menu control whether or not the focus points
are illuminated.
Option Description
Manual
focus mode
Choose [On] (the default setting) to display the active
focus point in manual focus mode.
Continuous
mode
Choose [On] (the default setting) to display the active
focus point in C
H
(continuous high-speed) and C
L
(continuous low-speed) modes.