Nikon D750 DSLR Camera (Body Only) - Manual (Page 416)

388
Display roll and pitch information based on information from
the camera tilt sensor. If the camera is tilted neither left nor
right, the roll reference line will turn green, while if the camera is
tilted neither forward nor back, the dot in the center of the
display will turn green. Each division is equivalent to about 5°.
A
Saved Settings
Settings are saved in a file named NCSETUPG. The camera will not be
able to load settings if the file name is changed.
Virtual Horizon
G button
➜
B setup menu
Camera level Camera tilted left or
right
Camera tilted forward
or back
D
Tilting the Camera
The virtual horizon display is not accurate when the camera is tilted at
a sharp angle forward or back. If the camera is unable to measure tilt,
the amount of tilt will not be displayed.
A See Also
For information on viewing a roll indicator in the viewfinder, see
Custom Setting f2 (
Assign Fn button > Press ; 0 356, 359). For
information on displaying a virtual horizon in live view, see pages 64
and 75.