Image Quality - Nikon D100 Manual

Image Quality and Size

Image Quality

The image quality setting determines the file type and compression ratio used
to store photographs. The following options are available:
Option
Raw 12-bit data from the CCD are saved directly to the memory
card in Nikon Electronic Image Format (NEF). NEF files can only be
viewed in Nikon View 5 or Nikon Capture 3 (
modes are available:
• NEF (Raw)
NEF (Raw)
• Comp. NEF (Raw)
Images are saved in uncompressed TIFF-RGB at a color depth of eight
TIFF-RGB
bits per channel (24-bit color).
Images are saved in JPEG format at a compression ratio of roughly
JPEG Fine
1 :4.
Images are saved in JPEG format at a compression ratio of roughly
JPEG Normal
1 : 8.
Images are saved in JPEG format at a compression ratio of roughly
JPEG Basic
1 :16.
File Names
Photographs taken with the D100 are stored as image files with names of the form
"DSC_nnnn.xxx," where nnnn is a four-digit number between 0001 and 9999 assigned
automatically in ascending order by the camera, and xxx is one of the following three
letter extensions: ".NEF" for NEF images, ".TIF" for TIFF-RGB, and ".JPG" for JPEG
images.
44
In this mode, NEF images are not compressed, reducing the time
needed to process images before they are saved to the memory
card but increasing file size.
In this mode, NEF images are compressed using a virtually "loss-
less" algorithm that reduces file size by approximately fifty to sixty
percent without affecting image quality. More time is required to
process images before they are saved to the memory card.
Description
169). Two NEF