Canon EOS 6D Instruction Manual page 104

3 Setting the Image-Recording Quality
If you select both RAW and JPEG, the same image will be recorded
simultaneously to the card in both RAW and JPEG at the image-
recording quality that was set. The two images will be recorded with the
same file numbers (file extension .JPG for JPEG and .CR2 for RAW).
The image-recording quality icons are as follows: 1 (RAW), 41
(Medium RAW), 61 (Small RAW), JPEG, 7 (Fine), 8 (Normal), 3
(Large), 4 (Medium), and 6 (Small).
About RAW
A RAW image is raw data output by the image sensor converted to
digital data. It is recorded to the card as is, and you can select the
quality as follows: 1, 41, or 61.
A 1 image can be processed with [31: RAW image processing]
(p.272) and saved as a JPEG image. (41 and 61 images cannot
be processed with the camera.) While the RAW image itself does not
change, you can process the RAW image according to different
conditions to create any number of JPEG images from it.
With all RAW images, you can use Digital Photo Professional (provided
software, p.392) to make various adjustments and then generate a
JPEG, TIFF, etc., image incorporating those adjustments.
To display RAW images on a computer, using the provided software is
recommended. Commercially-available software may not be able to display
RAW images. To see if RAW images taken with this camera are compatible
with other software, inquire the respective software manufacturer.
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