Canon EOS 5D MARK II Instruction Manual page 32

Using AF to Focus
Live Mode: AF_
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
the Quick mode.
AF point
Move the AF point.
_ Use <,:_:,> to move the AF point <[_>
to where you want to focus. (It cannot
go to the edges of the picture.)
_ If you press <,_:,> straight down, the
AF point will return to the image
center.
_*_,_Focus the subject.
_ Aim the AF point over the subject,
and hold down the <AFON> button.
_y,, W hen focus is achieved, the AF point
will turn green and the beeper will
sound.
_y,, I f focus is not achieved, the AF point
will turn orange.
::_ Take the picture.
_ Check the focus and exposure, then
press the shutter button to take the
picture (p.110).
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