Canon EOS-1Dx Mark II User Manual - Page 102

Lenses and Usable AF Points Although the camera has 61 AF points, the number of usable AF points, focusing patterns, and Area AF frame configuration vary depending on the lens. The lenses are thereby classified into eleven groups from A to K. When using a lens in groups G to K, fewer AF points will be usable. See which group each lens belongs to on pages 109-112. Check which group the lens in use belongs to. When you press the button, the AF points indicated by the mark will blink. (The / / AF points will stay lit.) Regarding lighting up or blinking of the AF points, see page 95. Regarding new lenses marketed after the EOS-1D X Mark II (in the first half of 2016), check the Canon Web site to see which group they belong to. Some lenses may not be available in certain countries or regions. Group A Autofocusing with 61 points is possible. All the AF area selection modes are selectable. : Dual cross-type AF point. Subject tracking is superior and the focusing precision is higher than with other AF points. : Cross-type AF point. Subject tracking is superior and highprecision focusing is achieved. : AF points sensitive to horizontal lines. 102