Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 639)

3.
Set the desired processing conditions.
Use shot settings
Images are processed using image settings at the time of capture.
Images captured with [ : HDR PQ settings ] set to [ Enable ] are
processed to create HEIFs, and images captured with this function set
to [
Disable ] are processed to create JPEGs.
Set up processing→JPEG/Set up processing→HEIF
Use < > to select an item.
Turn the < > or < > dial to switch the setting.
Press the < > button to access the function setting screen.
To reset the settings, press the < > button and select [ OK ] after a
confirmation message is displayed.
Comparison screen
You can switch between the [ After change ] and [ Shot settings ]
screens by pressing the < > button and turning the < > dial.
Items in orange on the [ After change ] screen have been modified
since the time of capture.
Press the < > button to return to the processing conditions
screen.
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