Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 429)

3.
Adjust the image.
Select [ ], then press < >.
Adjust the image, then press < >.
(1) Use < > to position the light source.
(2) represents the position of the selected face. By adjusting (1) relative
to (2), you can adjust the direction of lighting. Overlapping positions of
(1) and (2) place the light source directly in front of the face.
You can also drag to adjust the direction of lighting.
(3) To set the light intensity (
low / standard / high), press
the < > button.
(4) To set the light coverage ( spot / medium / wide), press the
< > button.
(5) For images with multiple human subjects, you can press the
<
> button and turn the < > dial to select a face for adjustment
before you specify processing conditions. You can also tap the screen
to select a face.
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