Nikon D6 Reference Manual page 935

Role
[Choose image
J
area]
[Microphone
H
sensitivity]
[None]
D
Power Aperture
•
Power aperture is available only in modes A and M.
• A 6 icon displayed in the monitor indicates that power aperture cannot
be used.
•
The display may flicker while aperture is adjusted.
Press the control and rotate a command dial to
choose the image area for movies. Note that
the image area cannot be changed while
recording is in progress.
Press the control and rotate a command dial to
adjust microphone sensitivity.
The control has no effect.
A Custom Settings: Fine-Tuning Camera Settings
Description
883