Nikon D700 User Manual page 85

II ChooseImage Area
Choose the image area used when Off is selected for Auto DX
crop (pg. 61).
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Description
Images are recorded in FX
format using the full area of the
image sensor (36.0 x 23.9 mm),
FX format producing a picture angle
[] (36x24) equivalent to a Nikkor lens on a
35 mm format camera. The
edges of pictures taken with DX
format lenses will be blacked
out.
An area at the center of the
image sensor 23.5 x 15.6 mm
(shown by the DX format crop
DX format in the viewfinder)is used to
[] (24x16) record pictures in DX format.
To calculate the approximate
focal length of the lens in DX format
35 mm format, multiply by 1.5. crop
[] The DX Format Crop
If Auto (the default setting) or On is selected for Custom Setting a6 (AF
point illumination), the DX format crop is shown by a frame in the
viewfinder when DX format is active. If Off is selected, the area outside
the DX format crop is indicated by a transparent mask.
DX format crop
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