Nikon D300 User Manual (en)

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Image Quality
The D300 supports the following image quality options.
A
File Size
See page 405 for information on the number of pictures that can be 
recorded at different image quality and size settings.
Option
File type
Description
NEF (RAW)
NEF
RAW data from the image sensor are saved 
directly to the memory card in Nikon Electronic 
Format (NEF). Use with images that will be 
transferred to a computer for printing or 
processing. Note that once transferred to a 
computer, NEF (RAW) images can only be viewed 
using ViewNX version 1.2.0 or later or other 
compatible software such as Capture NX version 
1.3.5 or later or Capture NX 2 version 2.1.0 or 
later (available separately; pg. 368).
TIFF (RGB)
TIFF 
(RGB)
Record uncompressed TIFF-RGB images at a bit 
depth of 8 bits per channel (24-bit color).
 
TIFF is 
supported by a wide variety of imaging 
applications.
JPEG fine
JPEG
Record JPEG images at a compression ratio of 
roughly 1:4 (fine image quality).
*
JPEG normal
Record JPEG images at a compression ratio of 
roughly 1:8 (normal image quality).
*
JPEG basic
Record JPEG images at a compression ratio of 
roughly 1:16 (basic image quality).
*
NEF (RAW)+
JPEG fine
NEF/
JPEG
Two images are recorded, one NEF (RAW) image 
and one fine-quality JPEG image.
NEF (RAW)+
JPEG normal
Two images are recorded, one NEF (RAW) image 
and one normal-quality JPEG image.
NEF (RAW)+
JPEG basic
Two images are recorded, one NEF (RAW) image 
and one basic-quality JPEG image.
* [Size  priority]  selected for [JPEG compression].