Canon EOS 3 User Manual (en)

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Custom Function Settings
121
Remarks
Page
Even if the exposure settings you have set are not suitable, the camera
will automatically alter the settings to obtain a standard exposure. This
feature is convenient when the scene’s brightness changes suddenly.
This setting is suited for subjects whose focusing distance changes
irregularly.
The focusing point selection range expands by one point all around the
manually-selected focusing point. This setting is effective when the
manually-selected focusing point is unable to focus track a subject
moving irregularly.
As shown in the table below, the camera sets the focusing point selection
range automatically to suit the lens focal length, AF mode, and subject
movement during predictive AF. This feature is useful when the subject
movement is unpredictable.
64
67
AF Mode
Lens Focal Length
Shorter than 300mm
300mm or Longer
The focusing point selection range
does not expand automatically.
The focusing point selection range
expands by 1 point.
For a slow-
For a fast-
moving subject.
moving subject.
For a slow-
For a fast-
moving subject.
moving subject.
One-Shot AF
AI Servo AF
 08. C836-E (103~)  28-01-2003  12:53  Pagina 121