Photographs taken while On is selected contain information on camera orientation, allowing them to be rotated automatically during playback or when viewed in ViewNX-i or in Capture NX-D. The following orientations are recorded:
Landscape (wide) orientation
Camera rotated 90° clockwise
Camera rotated 90° counterclockwise
Camera orientation is not recorded when Off is selected. Choose this option when panning or taking photographs with the lens pointing up or down.