Nikon D300s User Manual

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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.
❚❚NEF (RAW) Recording > Type
Choose the type of compression for NEF (RAW) images.
❚❚NEF (RAW) Recording > NEF (RAW) Bit Depth
Choose a bit depth for NEF (RAW) images.
Option
Description
Size priority
Images are compressed to produce relatively 
uniform file size.
P
Optimal 
quality
Optimal image quality.
 
File size varies with scene 
recorded.
Option
Description
N
Lossless 
compressed
NEF images are compressed using a reversible 
algorithm, reducing file size by about 20–40% 
with no effect on image quality.
O
Compressed
NEF images are compressed using a non-
reversible algorithm, reducing file size by about 
40–55% with almost no effect on image quality.
Uncompressed NEF images are not compressed.
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, 
producing files roughly 1.3 times larger than 12-bit files 
but increasing the color data recorded. Maximum frame 
advance rate (0 89) falls to 2.5 fps.
G button