Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 313)

Manual Focus
Setting MF Peaking (Outline Emphasis)
Focus Guide
AF-Assist Beam Firing
If focusing is not possible with autofocus, you can magnify the image and focus manually.
1.
Set the lens's focus mode switch to < >.
Turn the lens focusing ring to set the approximate focus.
2.
Magnify the image.
Each press of the < > button changes the magnification ratio, as
follows.
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