Nikon D3100 User Manual page 52

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.
JPEG fine
JPEG normal
JPEG
JPEG basic
File type Description
Two images are recorded: one NEF (RAW) image and one fine-quality JPEG
image.
Raw 12-bit data fro~mthe image sensor are saved directly to the memory
NEF card. Settings such as white balance and contrast can be adjusted on a
computer after shooting.
Record JPEG images at a compression ratio of roughly 1 : 4 (fine quality).
Record JPEG images at a compression ratio of roughly 1 : 8 (normal quality).
Record JPEG images at a compression ratio of roughly 1 : 16 (basic quality).
NEF (RAW)
Image Quality
Choose a file format and compression ratio (image quality).
Option
NEF(RAW)+
JPEG fine
1
Place the cursor in the information display.
If shooting information is not displayed in the monitor, press the
~D~
button.
Press the
~D~
button again to place the cursor in the information display.
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Information display
2
Display image quality options.
Highlight the current image quality in the
information display and press
®.
3
Choose a file type.
Highlight an option and press
®.
To return to
shooting mode, press the shutter-release button
halfway.
46