Nikon D500 用户指南

48 Menu Guide

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

❚❚ NEF (RAW) Compression

❚❚ NEF (RAW) Bit Depth

G button

➜ C photo shooting menu

N

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

O

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

NEF images are not compressed.

q

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

r

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.