Canon EOS-1DX Af Setting Manualbook page 8

Select which and how AF points are selected. This menu
includes settings related to [AF area selection mode]
([Automatic AF point selection criteria], [Selectable AF
points], [AF area selection mode], [AF area selection
method], and [Orientation linked AF point]). In addition
there is the [Lens drive when AF impossible] option in
this menu.
Within [AF5] tab are settings that control how AF points
are displayed in the viewfinder such as ([AF point display
during focusing], [VF display illumination], and [AF status
in viewfinder]). With the (Manual AF pt. selec pattern)
the AF point selection can stop at the peripheral AF
point or instead loop back to the opposite side of the AF
area. For those who need to make fine adjustments to
the focus position [AF Microadjustment] is available.
AF4
Includes general
settings related to AF
point selection
AF5
Includes general settings
related to display of AF
points, etc.
8