38 Menu GuideChoose a compression type for JPEG images.Choose the type of compression and the bit depth for NEF (RAW)images.❚❚ Type❚❚ NEF (RAW) Bit DepthJPEG CompressionG button ➜ C photo shooting menuOption DescriptionO Size priority Images are compressed to produce relativelyuniform file size.P Optimal quality Optimal image quality. File size varies with scenerecorded.NEF (RAW) RecordingG button ➜ C photo shooting menuOption DescriptionN LosslesscompressedNEF images are compressed using a reversiblealgorithm, reducing file size by about 20–40%with no effect on image quality.O CompressedNEF images are compressed using a non-reversible algorithm, reducing file size by about35–55% with almost no effect on image quality.Option Descriptionq 12-bit NEF (RAW) images are recorded at a bit-depth of12 bits.r 14-bitNEF (RAW) images are recorded at a bit depth of14 bits, producing files larger than those with abit depth of 12 bits but increasing the color datarecorded.
