Canon EOS-1V HS manual Focusing Point Activation Area C.Fn-17

Focusing Point Activation Area C.Fn-17

C.Fn-17 can be set to expand the focusing point's activation area to include more than one active focusing point. (→p.108)

• C.Fn-17-1 Expanding the activation area to 7 points C.Fn-17-1(→p.108)

This larger activation area makes it easier to focus subjects moving irregularly.

: Selected focusing point.

: Focusing points in expanded activation area.

•The expanded focusing point activation area is not displayed in the viewfinder.

•When focus is achieved in the One- Shot AF mode, the selected focusing point and the focusing point(s) achieving focus will light.

• C.Fn-17-2 Expanding the activation area to 7 or 13 points automatically C.Fn-17-2(→p.108)

As shown below, the focusing point activation area expands automatically to 7 or 13 points depending on the lens focal length, AF mode, and the subject's speed in the AI Servo AF mode. This is effective when the subject's movement is unpredictable.

AF Mode	Lens Focal Length
		300mm or Longer
Shorter than 300mm
One-Shot AF
The activation area does not		The activation area expands by
expand automatically.		one point.
AI Servo AF
For a slow-	For a fast-	For a slow-	For a fast-
moving subject	moving subject	moving subject	moving subject

*To set the Custom Function, see “Selecting and Setting Custom Functions” on page 96.

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