2. D850 Online Manual
3. Menu Guide
4. C The Photo Shooting Menu: Shooting Options
5. NEF (RAW) Recording

Choose a compression type and bit depth for NEF (RAW) photographs.

• NEF (RAW) Compression
• NEF (RAW) Bit Depth

NEF (RAW) Compression

NLossless compressed

NEF images are compressed using a reversible algorithm, reducing file size by about 20–40% with no effect on image quality.

OCompressed

NEF images are compressed using a non-reversible algorithm, reducing file size by about 35–55% with almost no effect on image quality.

Uncompressed

NEF images are not compressed.

NEF (RAW) Bit Depth

q12-bit

NEF (RAW) images are recorded at a bit-depth of 12 bits.

r14-bit

NEF (RAW) images are recorded at a bit depth of 14 bits, producing files larger than those with a bit depth of 12 bits but increasing the color data recorded.