Nikon D700 User Manual page 94

II TheNEF(RAIV)Recording Menu:NEF(RA W)Bit Depth
The NEF (RAW) recording > NEF (RAW) bit depth item in the
shooting menu offers the following bit-depth options for NEF
(RAW) images:
12-bit ( ld2-fb '_
14-bit 14-bit _esbut increasing the
lcolor data recorded.
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[] NEF (RAW) Images
Note that the option selected for image size does not affect the size of NEF
(RAW) images. When opened in software such as Capture NX 2 (available
separately) or ViewNX (supplied), NEF (RAW) images have the dimensions
given for large (L-size) images.