Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 98)

Shooting Moving Subjects
After you press the shutter button halfway and a blue AF point appears, the camera detects
subject movement and focuses using Servo AF. Keep the subject on the screen as you hold
down the shutter button halfway, and at the decisive moment, press the shutter button
completely.
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