Nikon D6 Reference Manual page 1154

Autofocus
Detection
range
Lens servo
Focus points
AF-area mode
Focus lock
1102 Specifications
−4.5 – +20 EV (ISO 100, 20 °C/68 °F)
•
Autofocus (AF): Single-servo AF (AF-S); continuous-
servo AF (AF-C, viewfinder photography only;
predictive focus tracking activated automatically
according to subject status); full-time AF (AF-F;
available only during live view and movie recording)
•
Manual focus (M): Electronic rangefinder can be used
105 focus points (number available for selection in
viewfinder photography can be chosen from 105, 27,
and 15)
•
Viewfinder photography: Single-point AF; 9-, 25-,
49-, or 105- point dynamic-area AF; 3D-tracking;
group-area AF; group-area AF (C1); group-area AF
(C2); auto-area AF
•
Live view: Face-detection AF, wide-area AF, normal-
area AF, subject-tracking AF
Focus can be locked by pressing shutter-release button
halfway (single-servo AF/AF-S) or by pressing the
center of the sub-selector