Nikon D6 Reference Manual page 385

Option
[Interval priority]
[Focus before
each shot]
•
[On]: Enable interval priority to ensure that frames
shot in modes P and A are taken at the chosen
interval.
- Flash photography is disabled.
- The number of shots per interval is set to 1, even
if the number of shots chosen for
[Intervals×shots/interval] is 2 or more.
- If AF-S is selected for autofocus mode, select
[Release] for Custom Setting a2 [AF-S priority
selection]. If AF-C is selected, select [Release] for
Custom Setting a1 [AF-C priority selection].
- If [On] is selected for [ISO sensitivity settings] >
[Auto ISO sensitivity control] and the time
chosen for [Minimum shutter speed] is longer
than the interval, the time selected for the
interval will take priority over the selected shutter
speed.
•
[Off]: Disable interval priority to ensure that
photos are correctly exposed.
If [On] is selected, the camera will focus between
shots.
Taking Photos at a Set Interval (Interval Timer Shooting)
Description
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