C.fn i -7 spot metering link to af point, C.fn i -8 safety shift, C.fn i -9 select usable shooting modes – Canon EOS-1D Mark IV User Manual
Page 210: Tv, av
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Custom Function Settings
C.Fn I -7 Spot metering link to AF point
0; Disable (use center AF point)
1: Enable (use active AF point)
If
[.IS.C.Fn III -10: Selectable AF point]
(p.223) is set to
[1
:
19 points],
[2:11 points], [3: Inner 9 points]
or
[4: Outer 9 points],
spot metering
linked to the selected AF point is possible. With automatic AF point
selection, spot metering will be at the viewfinder center.
41 If C.Fn III
-10
is set to
[0: 45 points],
spot metering at the center will be set
even if C.Fn I
-7
is set to
[1: Enable (use active AF point)].
C.Fn I -8 Safety shift
0: Disable
1: Enable (Tv/Av)
This works in the shutter-priority AE (Tv) and aperture-priority AE (Av)
modes. When the subject's brightness changes erratically and the
correct autoexposure cannot be obtained, the camera will change the
exposure setting automatically to obtain a correct exposure.
2: Enable (ISO speed)
This works in the Program AE (P), shutter-priority AE (Tv), and
aperture-priority AE (Av) modes. When the subject’s brightness
changes erratically and the correct autoexposure cannot be obtained,
the camera will change the ISO speed automatically to obtain a correct
exposure.
0 • Even if the exposure settings settable range has been changed with
C.Fn I -3,12,13, the safety shift will override it when necessary to obtain
the correct exposure,
• With settings 1 and 2, safety shift also works with flash.
C.Fn I -9 Select usable shooting modes
Disable:
All the shooting modes
(M,
Tv, Av,
P, BULB)
will be
selectable.
Enable:
Only the shooting modes set with
[Register]
will be selectable.
Register:
To make a shooting mode unselectable, uncheck the checkmark
<>/>. After entering the settings, select
[Apply].
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