Nikon D780, Reference Manual

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Menu Guide > C The Photo Shooting Menu
Choose a compression type and bit depth for NEF (RAW)
photographs.
NEF (RAW) Compression
NEF (RAW) Bit Depth
NEF (RAW) Recording
G
button
U
C
photo shooting menu
Option Description
N
[ Lossless
compressed ]
NEF images are compressed using a reversible
algorithm. The resulting files are about 60% to
80% the size of uncompressed pictures.
O [ Compressed ]
NEF images are compressed using a non-
reversible algorithm. The resulting files are about
45% to 65% the size of uncompressed pictures.
Option Description
q [ 12-bit ]
NEF (RAW) images are recorded at a bit depth of
12 bits.
r [ 14-bit ]
NEF (RAW) images are recorded at a bit depth of
14 bits. Files recorded at a bit depth of 14 bits
contain more color data than pictures recorded
using [
12-bit ]. Files recorded at a bit depth of 14
bits are also larger than pictures recorded using
[
12-bit ].