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AI Servo AF
AI Servo 1st/2nd image priority
C.Fn III-3
Important C.Fn
Decide whether to prioritize shutter release timing based
on control by the camera or the photographer
Select the optimum setting from four combinations
Focus-tracking of the subject,
and the relationship of the
shutter’s timing speed can be
set with C.Fn III-3 AI Servo
1st/2nd image priority.
Option [0]
Shooting with AF
priority/
Tracking priority
Focusing on the subject has
priority (a specific time is
maintained for carrying out
focusing)
F o c u s - t r a c k i n g o f t h e
s u b j e c t h a s p r i o r i t y ( a
specific time is maintained
for carrying out focusing)
Focusing on the subject has
priority (a specific time is
maintained for carrying out
focusing)
(Rather than focus-tracking
of the subject) continuous
shooting speed has priority
(Rather than focusing on
the subject) the shutter
release timing speed has
priority
(Rather than focus-tracking
of the subject) continuous
shooting speed has priority
(Rather than focusing on
the subject) the shutter
release timing speed has
priority
F o c u s - t r a c k i n g o f t h e
s u b j e c t h a s p r i o r i t y ( a
specific time is maintained
for carrying out focusing)
1st image operations
Operations from the
2nd image onward
Option [1]
AF priority/
Drive speed priority
Option [2]
Release/
Drive speed maximum
priority
Option [3]
Release/
Tracking priority
C.Fn III-3
