Nikon Df - Manual (Page 75)

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Image Quality and Size
Together, image quality and size determine how much space each
photograph occupies on the memory card. Larger, higher quality
images can be printed at larger sizes but also require more
memory, meaning that fewer such images can be stored on the
memory card (0 364).
Image Quality
Choose a file format and compression ratio (image quality).
Option File type Description
NEF (RAW) NEF
Raw data from the image sensor are saved directly
to the memory card. Settings such as white
balance and contrast can be adjusted after
shooting.
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 quality).
*
JPEG normal
Record JPEG images at a compression ratio of
roughly 1:8 (normal quality).
*
JPEG basic
Record JPEG images at a compression ratio of
roughly 1:16 (basic 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.