Canon EOS Rebel T7 Manual De Instrucciones Básicas página 77

If the subject's face is significantly out of focus, face detection will not be

possible. If the lens enables manual focusing even while the lens's focus
mode switch is set to <f>, turn the focusing ring to attain rough focus.
The face will then be detected and <p> will be displayed.
An object other than a human face may be detected as a face.

Face detection will not work if the face is very small or large in the picture,

too bright or too dark, tilted horizontally or diagonally, or partially hidden.
The <p> may cover only a part of the face, not the whole face.

When you press <0>, the AF method will switch to [FlexiZone - Single]

(p.73). You can then press the <S> cross keys to move the AF point.
Press <0> again to return to [u(Face detection) Live Mode]. (If C.Fn-9
is set, hold down the <O/L> button and press <0>.)
Since AF is not possible with a face detected near the edge of the

picture, the <p> will be grayed out. Then if you press the shutter button
halfway, the center AF point < > will be used to focus.
Focus on the subject.
3
Press the shutter button halfway and

the camera will focus on 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.
4
Check the focus and exposure, then

press the shutter button completely to
take the picture (p.70).
Using AF to Focus (AF Method)
75