Nikon D6 Reference Manual page 209

D
AF-Area Mode
AF-area mode is shown in the viewfinder and top control panel.
AF-area mode
[Single-point AF]
[Dynamic-area
*
AF (9 points)]
[Dynamic-area
AF (25 points)]
[Dynamic-area
AF (49 points)]
[Dynamic-area
AF (105 points)]
[3D-tracking]
Top control
panel
*
*
*
Viewfinder
Choosing How the Camera Focuses (Focus)
Viewfinder focus-
point display
(during selection)
157