Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 131)

Note
HEIF can be specified when [ HDR shooting ] in [ : HDR PQ settings ] is
set to [ Enable ]. You can convert these images to JPEG images after shooting ( ).
is set if you set both RAW and JPEG/HEIF to [ ].
Two versions of each shot are recorded at your specified image quality when you
have selected both RAW and JPEG/HEIF. Both images have the same file number
but each has a different file extension, with .JPG for JPEG, .HIF for HEIF and .CR3
for RAW.
is in (Fine) quality.
Meaning of image quality icons: RAW, Compact RAW, JPEG, HEIF,
Large, Medium, Small.
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