Canon EOS-1DX MARK II Settings Manual page 85

Group E
31-point cross-type AF points available,
with 10 cross-type points supported f/4
+ f/5.6
AF can be carried out using 61 points
You can choose all AF area selection modes.
Major lenses in Group E
EF11-24mm F4L USM
EF200-400mmF4L IS USM Ext 1.4×
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