Canon EOS RP Instruction Manual page 741

C.Fn II-4: Lens drive when AF impossible
You can specify lens operation in cases when the camera cannot autofocus
on a subject.
0: Continue focus search
z
If focus cannot be achieved with autofocus, the lens is driven to search
for the precise focus.
1: Stop focus search
z
If autofocus starts and the focus is far off or if focus cannot be achieved,
the lens drive will not be performed. This prevents the lens from
becoming grossly out of focus due to the focus search drive.
[1: Stop focus search] is recommended for super telephoto lenses or other
o
lens that cover a large area, to avoid significant delay from focus search drive
if the lens becomes greatly out of focus.
C.Fn II-5: Limit AF methods
The [ X ] mark cannot be removed from [1-point AF].
o
You can limit the AF methods available to
those that you will use.
For details on AF methods, see = 188–
= 190.
Add a checkmark [ X ] to the AF methods to
make available. Select [OK] to register the
setting.
Custom Function Settings
533