Canon EOS-1V HS Instructions Manual page 108

Custom Function Settings
C.Fn-16 Safety shift
Safety shift can be set for the shutter speed-priority AE and aperture-
priority AE modes.
C.Fn Function
Safety shift for Tv-
C.Fn-16
AE and Av-AE
C.Fn-16-1: In case the subject's brightness changes suddenly and the
current shutter speed-priority AE or aperture-priority AE
setting becomes unsuitable, the shutter speed or aperture
is shifted to obtain a suitable exposure.
C.Fn-17 Focusing point activation area
The manually selected focusing point's activation area can be expanded.
(→p.44)
Setting C.Fn-13 will also expand the focusing point activation area.
C.Fn Function
Focusing point
C.Fn-17
activation area
C.Fn-17-1: The focusing point activation area expands by one point all
around the manually-selected focusing point. A total of 7
focusing points become active. This setting is effective for
when only one manually-selected focusing point is unable
to focus track a subject moving irregularly.
C.Fn-17-2: The camera automatically sets the focusing point activation
area to 1, 7 or 13 points to suit the lens focal length, AF mode,
and the subject's speed during predictive AF. (→p.44) This is
effective when the subject's movement is unpredictable.
108
No.
0 Disabled
1 Enabled
No.
0 1 (Standard)
1 1 + Adjacent focusing points
2 1 + More adjacent focusing points
Description
Description