Nikon D3S User Manual page 111

The following options can be
accessed from the shooting
menu. Press the G button to
display the menus, highlight
the desired option and press 2.
JPEG Compression
Choose the type of compression for JPEG images.
Option
O Size priority
Optimal
P
quality
NEF (RAW) Recording > Type
Choose the type of compression for NEF (RAW) images.
Option
Lossless
N
compressed
O Compressed
Uncompressed NEF images are not compressed.
NEF (RAW) Recording > NEF (RAW) Bit Depth
Choose a bit depth for NEF (RAW) images.
Option
q 12-bit
NEF (RAW) images are recorded at a bit-depth of 12 bits.
NEF (RAW) images are recorded at a bit-depth of 14 bits,
r 14-bit
producing files larger than 12-bit files but increasing the
color data recorded.
G button
Images are compressed to produce relatively
uniform file size.
Optimal image quality. File size varies with scene
recorded.
NEF images are compressed using a reversible
algorithm, reducing file size by about 20–40%
with no effect on image quality.
NEF images are compressed using a non-
reversible algorithm, reducing file size by about
40–55% with almost no effect on image quality.
Description
Description
Description
d
85