Canon EOS Rebel XS Instruction Manual page 19

UsingAF to Focus*
C.Fn=7=2: Live mode
The image sensor is used to focus. Although AF is possible with the
Live View image displayed, the AF operation will take longer than with
Quick mode. Also, achieving focus may be more difficult than with
Quick mode.
Set to Live mode and the lens focus mode switch to <AF>=
_ Disptay the Live View image.
® Press <8>.
_ The Live View Smage will appear on
the LCD monitor
_ When Live mode is set, the AF point
<FJ> will be displayed
,<_,,_ Focus the subject.
_ Aim the AF point over the subject,
and hold down the <%> button.
_ When focus is achieved, the AF point
will turn green and the beeper will
sound.
_ If focus is not achieved, the AF point
will turn orange.
tj_ Take the picture.
_ Check the focus and exposure, then
press the shutter button to take the
picture (p 99).
t04