Canon EOS 5D Instruction Manual page 118

Using AF to Focus
Liveu (Face Detection) Mode:
With the same AF method as the Live mode, human faces are detected
and focused. Have the target person face the camera.
118
Point the camera toward the
1
subject.
When a face is detected, a <p>
frame will appear over the face to be
focused.
If multiple faces are detected, <
will be displayed. Use <9> to move
the <
Focus the subject.
2
Press the <p> button to focus
the face covered by the <p> frame.
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.
If a face cannot be detected, the AF
point < > will be displayed and AF
will be executed at the center.
Take the picture.
3
Check the focus and exposure, then
press the shutter button to take the
picture (p.110).
> frame over the target face.
>