Canon EOS 90D Advanced User's Manual page 141

AF points may not track subjects under some shooting conditions when Servo
o
AF is used with Zone AF.
Focusing may be diffi cult when using a peripheral AF point. In this case, select
o
an AF point in the center.
With [ 8 C.Fn II-10: Orientation linked AF point], you can set separate AF
o
points for vertical and horizontal shooting ( = 565).
Selecting the AF Method (Live View Shooting)
3
Focus and take the picture.
Aim the AF point over the subject and

press the shutter button halfway.
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.
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