Nikon D750 User Manual page 140

Image Area
A
The selected option is shown in the
information display.
DX Lenses
A
DX lenses are designed for use with DX format cameras and have a
smaller angle of view than lenses for 35mm format cameras. If Auto
DX crop is off and an option other than DX (24×16) (DX format) is
selected for Choose image area when a DX lens is attached, the edges
of the image may be eclipsed. This may not be apparent in the
viewfinder, but when the images are played back you may notice a
drop in resolution or that the edges of the picture are blacked out.
A The Viewfinder Display
The 1.2 × and DX format crops are shown below.
1.2×
A See Also
See page 76 for information on the crops available in movie live view.
112
DX format