Canon EOS-1DX MARK II Settings Manual page 15

Equipped with AI Servo AF III + , the EOS-1D X Mark II has
improved flexibility in handling a variety of moving
subjects, and superior prediction of movement for more
accurate focusing. Even with a variety of difficult
elements such as extremely fast movement, sudden
changes in speed, and interruptions by obstacles, it is
able to capture the subject. Therefore, the standard
setting Case 1 supports a wide range of movement as is,
making it possible to AF track subjects.
Furthermore, by improving AI Servo AF III + , handling
of subjects that come close and then move away, such
as motorcycles going through a hairpin curve is
improved. As a result, even for scenes where tracking
was not possible on the EOS-1D X, there are more cases
that can be handled by Case 1 on the EOS-1D X Mark II.
Shooting with Case 1 is highly recommended as you will
be able to obtain satisfying results , when shooting a
variety of sports and moving subjects.
When more specific settings for individual cases are
desired, please try Case 2 – Case 6 to match shooting
conditions.
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