Canon EOS-1DX MARK II Settings Manual page 84

Group C
41-point cross-type AF points available,
and they can be used with a high level
of tracking performance
AF focusing is possible with all 61 points. All AF area
selection modes are available.
Major lenses in Group C
EF50mm f/2.5 Compact Macro
EF100mm F2.8L Macro IS USM
EF300mm F4L IS USM
EF200mm F2.8L USM + Ext EF1.4x EF200mm F2.8L II USM + Ext EF1.4x
EF300mm F2.8L USM + Ext EF1.4x EF300mm F2.8L IS USM + Ext EF1.4x
EF300mm F2.8L IS II USM + Ext EF1.4x EF400mm F2.8L USM + Ext EF1.4x
EF400mm F2.8L II USM + Ext EF1.4x
EF400mm F2.8L IS II USM + Ext EF1.4x EF135mm F2L USM + Ext EF2x
EF200mm F1.8L USM + Ext EF2x
EF8-15mm F4L fisheye USM
EF17-40mm F4L USM
EF24-105mm F4L IS USM
EF70-200mm F4L IS USM
EF70-200mm F2.8L USM + Ext EF1.4x
EF70-200mm F2.8L IS II USM + Ext EF1.4x EF400mm F4 DO IS II USM
EF500mm F4L IS USM
EF600mm F4L USM
EF600mm F4L IS II USM
TS-E24mm F3.5L
EF100mm F2.8 Macro
EF300mm F4L USM
EF400mm F4DO IS USM
EF400mm F2.8L IS USM + Ext EF1.4x
EF200mm F2L IS USM + Ext EF2x
EF16-35mm F4L IS USM
EF24-70mm F4L IS USM
EF28-80mm F2.8-4L USM
EF70-200mm F4L USM
EF70-200mm F2.8L IS USM + Ext EF1.4x
EF500mm F4L IS II USM
EF600mm F4L IS USM
TS-E17mm F4L
TS-E24mm F3.5L II
84