Canon EOS R50 Mirrorless Camera (White) - Manual (Page 316)

2.
Select [ : Shooting mode].
3.
Select [Movie auto exposure].
4.
Focus on the subject.
Before recording a movie, focus with AF ( ) or manual focus ( ).
By default, [ : Movie Servo AF ] is set to [ Enable ] so that the
camera always keeps focusing ( ).
When you press the shutter button halfway, the camera focuses using
your specified AF area.
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