Canon EOS R, Advanced User'S Manual

Page: 297 / 644

297
Customizing AF Functions
[
2
5]
z
Lens drive when AF impossible
If focus cannot be achieved with autofocus, you can have the camera
keep searching for the precise focus or have it stop searching.
1
Select [
2
5: Lens drive when AF
impossible].
2
Select an item.
[ON] Continue focus search
If focus cannot be achieved with autofocus, the lens is driven to
search for the precise focus.
[OFF] Stop focus search
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.
When focus search drive is performed using a super telephoto lens or a
lens with a wide focusing drive range, the lens can become grossly out of
focus, and it may take more time to achieve focus next time. Setting
[Stop
focus search] is recommended.