Canon EOS Rebel SL3 DSLR Camera with 18-55mm Lens (Black) - Manual (Page 196)

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One-Shot AF for Still Subjects
Suited for still subjects. When you press the shutter button halfway,
the camera will focus only once.
z When focus is achieved, the AF point will turn green and the beeper will
sound.
z The focus remains locked while you hold down the shutter button
halfway, allowing you to recompose the image before taking the picture.
z For flash photography, the continuous shooting speed will become
slower.
z If [ 5 : Beep] is set to [Disable] , the beeper will not sound when focus is
achieved.
Servo AF for Moving Subjects
This AF operation is suited for moving subjects. While you hold down
the shutter button halfway, the camera will keep focusing on the
subject continuously.
z Subject tracking is given priority when the drive mode is set to <
i
> for
continuous shooting.
z For flash photography, the continuous shooting speed will become
slower.
z When focus is achieved, the AF point will turn blue.
z The exposure is set at the moment the picture is taken.
z When [AF method] is set to [
u
+Tracking] , focusing will be continuous
as long as the Area AF frame can track the subject.
z Depending on the lens used, the distance to the subject and the subject’s
speed, the camera may not be able to achieve correct focus.
z Zooming during continuous shooting may throw off the focus. Zoom first, then
recompose and shoot.
z With Servo AF, the beeper will not sound even when focus is achieved.