Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 355)

/ Autoexposure Recording
Exposure is controlled automatically to suit the brightness.
1.
Set the recording mode to [ ] or [ ].
Turn the Mode dial to < >, < >, < P >, < Fv >, or < B >.
2.
Focus on the subject.
Before recording a movie, focus with AF ( ) or manual focus ( ).
The camera focuses continuously under default settings, with [ Movie
Servo AF ] in [ : Movie Servo AF ] set to [ Enable ] ( ).
When you press the shutter button halfway, the camera focuses using
your specified AF area.
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