Canon EOS R50 Mirrorless Camera (White) - Manual (Page 451)

Caution
With [ One-Shot→enabled (magnify) ], display may not be magnified even if you
turn the lens focusing ring while pressing the shutter button halfway immediately
after shooting. If so, you can magnify display by releasing the shutter button,
waiting for [
] display, then pressing the shutter button halfway as you turn the
lens focusing ring.
Note
For details on your lens's manual focus specifications, refer to the Lens Instruction
Manual.
Use as a focusing or control ring
Menu-based switching of lens focus/control ring functionality.
Caution
Available when using lenses that have a combination focus/control ring but have no
switch to switch between these features.
Use as focus ring
The ring works as a focusing ring.
Use as control ring
The ring works as a control ring.
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