Canon EOS 90D, Instruction Manual, Page: 533 / 888

321
Movie Servo AF Speed
o
With certain lenses, even if you adjust the AF speed, the speed may not
change.
o
Available when
[
z
: Movie Servo AF]
is set to
[Enable]
and
[
z
: AF
method]
is set to
[1-point AF]
.
o
Operation when
[
z
: AF method]
is set to an option other than
[1-point AF]
is equivalent to setting
[AF speed]
to
[Standard (0)]
.
o
An asterisk to the right of
[
z
: Movie Servo AF speed]
indicates that the
default setting has been modifi ed.