Nikon D6 Reference Manual page 1055

Photos are out of focus:
●
•
Is the camera in manual focus mode? To enable autofocus, rotate
the focus-mode selector to AF.
•
Autofocus does not perform well under the following conditions. In
these cases, use manual focus or focus lock. Autofocus does not
perform well if: there is little or no contrast between the subject and
the background, the focus point contains objects at different
distances from the camera, the subject is dominated by regular
geometric patterns, the focus point contains areas of sharply
contrasting brightness, background objects appear larger than the
subject, or the subject contains many fine details.
The beep does not sound:
●
•
A beep does not sound when the camera focuses with AF-C
selected for autofocus mode.
•
Select an option other than [Off] for [Beep options] > [Beep on/off]
in the setup menu.
The full range of shutter speeds is not available:
●
Using a flash restricts the range of shutter speeds available. Flash sync
speed can be set to values of
[Flash sync speed]. When using flash units that support auto FP high-
speed sync, choose [1/250 s (Auto FP)] for a full range of shutter
speeds.
1 1
/ – / s using Custom Setting e1
250 60
Problems and Solutions
1003