Canon EOS 7D mark II Manual Book page 19

Release property settings during Servo AI
AF operation and Image/Focusing Priority settings
You can set whether focusing or shutter-release has priority
Image/Focusing parameters during AI Servo
[Set in the AF 2 tab]
You can decide whether to put priority on focusing or
shutter-release
1
Characteristics for the first shot [AI Servo 1st image priority]
2
Characteristics during continuous shooting [AI Servo 2nd image priority]
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[AF2 tab/AF3 tab]
Equal priority
This setting gives an equal priority to both focus
and shutter-release
Release priority
This setting gives priority to shutter-release and
will capture an image even if it is out of focus. It is
effective when you want to minimize any delay
when shooting, sacrificing AF performance
Focus priority
This setting gives priority to focusing on a subject
and it cannot capture an image unless it is in focus.
It is recommended when you want to ensure your
images are in focus sacrificing response speed.
Equal priority
This setting gives an equal priority to both focus
and shooting speed during continuous shooting.
The speed of continuous shooting may also slow
down when it is dark, or in low-contrast.
Shooting speed priority
This setting gives priority to a continuous shooting
speed rather than priority on focus. Continuous
shooting speed will not drop.
Focus priority
This setting gives priority to focusing rather than
continuous shooting speed. It cannot shoot a
pic ture unless it is in focus, greatly reducing
continuous shooting speed.
Image/Focusing parameter for One-Shot AF
[Set in the AF3 tab]
You can decide whether to put priority on focusing or
shutter-release
[One-Shot AF release priority]
The [AF2] and [AF3] tabs include settings related
to AF operation parameters and shutter-release
timing. With these items it is possible to set
which has priority (or a balance) between
focusing with AF, and the shutter-release.
The [AF2] tab contains the [AI Servo 1st image
priority] and [AI Servo 2nd image priority]
parameters for AI Servo AF. The priority on
focus and shutter-release can be set for both
the 1st image and subsequent images during
continuous shooting. With [Focus priority],
shooting is delayed until after the camera has
focus on a subject (this could be just a few
milliseconds). With [Release priority/Shooting
Release priority
You cannot shoot a picture unless it is in focus. It is
ef fec tive when you want to shoot only af ter
focusing on the subject.
Focus priority
Priority is on the shooting timing rather than focus.
It is recommended only when you want to put
priority on capturing brief photo opportunities
rather than focus.
speed priority] shooting takes place instantly
without waiting to focus, resulting in possible
out of focus images. The default [Balance
priority] sets equal priority on both (attempting
to focus without major delays to shutter release
timings), ideal for most shooting situations.
When using One Shot AF the shooting priority
can also be altered via the [One-Shot AF release
priority] option in the [AF3] tab. The priority of
focusing and shutter-release can be altered in
the same way as about during AI servo AF.
However there is no [Balance priority], and
instead [Focus priority] is the default setting.
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