Canon 1D X - Manual (Page 80)

Lenses and Usable AF Points
80
Only 47 of the 61 AF points can be used for autofocusing. All of the AF
area selection modes are selectable. During automatic AF point
selection, the outer frame marking the AF area (Area AF frame) will be
different from 61-point automatic selection AF.
: Cross-type AF point. Subject
tracking is superior and high-
precision focusing is achieved.
: AF points sensitive to horizontal
lines.
: Disabled AF points (not displayed).
EF70-200mm f/2.8L USM
+ Extender EF2x
EF70-300mm f/4.5-5.6 DO IS USM EF80-200mm f/4.5-5.6
EF70-200mm f/2.8L IS USM
+ Extender EF2x
EF75-300mm f/4-5.6 EF90-300mm f/4.5-5.6
EF70-200mm f/2.8L IS II USM
+ Extender EF2x
EF75-300mm f/4-5.6 USM EF90-300mm f/4.5-5.6 USM
EF70-200mm f/4L USM
+ Extender EF1.4x
EF75-300mm f/4-5.6 II EF100-200mm f/4.5A
EF70-200mm f/4L IS USM
+ Extender EF1.4x
EF75-300mm f/4-5.6 II USM EF100-300mm f/4.5-5.6 USM
EF70-210mm f/3.5-4.5 USM EF75-300mm f/4-5.6 III EF100-300mm f/5.6
EF70-300mm f/4-5.6 IS USM EF75-300mm f/4-5.6 III USM EF100-300mm f/5.6L
EF70-300mm f/4-5.6L IS USM EF75-300mm f/4-5.6 IS USM EF100-400mm f/4.5-5.6L IS USM
Group F
EF800mm f/5.6L IS USM EF28-80mm f/3.5-5.6 III USM EF35-80mm f/4-5.6 II
EF22-55mm f/4-5.6 USM EF28-80mm f/3.5-5.6 IV USM EF35-80mm f/4-5.6 III
EF28-70mm f/3.5-4.5 EF28-80mm f/3.5-5.6 V USM EF35-80mm f/4-5.6 PZ
EF28-70mm f/3.5-4.5 II EF28-105mm f/4-5.6 EF35-80mm f/4-5.6 USM
EF28-80mm f/3.5-5.6 EF28-105mm f/4-5.6 USM EF35-350mm f/3.5-5.6L USM
EF28-80mm f/3.5-5.6 USM EF35-70mm f/3.5-4.5 EF80-200mm f/4.5-5.6 II
EF28-80mm f/3.5-5.6 II EF35-70mm f/3.5-4.5A EF80-200mm f/4.5-5.6 USM
EF28-80mm f/3.5-5.6 II USM EF35-80mm f/4-5.6
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