Canon EOS-1D X Af Setting Manualbook page 14

AF Configuration Tool [Presets]
Focus track subjects that may change speeds rapidly
Optimize AI Servo AF for erratic, stop-and-start movement or changes in subject speed
Parameter default settings
• Subject tracking sensitivity
• Accelerate / decelerate Tracking
• AF point auto switching
Continuously track players as they suddenly slow down and speed up
W h e n s h o o t i n g s p o r t s , t h e r e a r e m a n y
situations when subjects won't be moving at
steady, continuous speeds. Athletes suddenly
going from static to moving or quickly stopping
can occur in various sports and situations and it
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Case 4
For example, a soccer
g a m e . A p l a y e r
d r i b b l i n g a t h i g h
speed stops suddenly
i n f r o n t o f a
defender, changes
direc tion and then
b e g i n s t o s p r i n t
again. By using Case
4 , t h e A F s y s t e m
r e a c t s t o s u d d e n
chang e s in sp e e d,
allowing continuous
a n d a c c u r a t e
focusing.
[0]
[+1]
[0]
can be challenging for traditional AF systems. In
these situations, Case 4 may be most effective.
With the [Accelerate / decelerate Tracking]
parameter set to [+1], the AI Servo AF will work
to focus track any changes in speed, including