Nikon D6 Reference Manual page 839

D
Auto ISO Sensitivity Control
•
"Noise" (randomly-spaced bright pixels, fog, or lines) may increase at
high ISO sensitivities.
•
At high ISO sensitivities, the camera may have difficulty focusing.
•
The foregoing can be prevented by choosing a lower value for [ISO
sensitivity settings] > [Maximum sensitivity].
White Balance
Choose the white balance for movies.
Select [Same as photo settings] to use
the option currently selected for photos
( 0 764).
G button U 1 movie shooting menu
1 The Movie Shooting Menu: Movie Shooting Options 787