Safety Shift - Canon EOS 1D Mark III Instruction Manual

3 Custom Function Settings
C.Fn I -7
0: Disable (use center AF point)
1: Enable (use active AF point)
Enables spot metering linked to the selected AF point. With automatic
AF point selection, spot metering will be at the viewfinder center.
C.Fn I -8
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, shutter-priority AE, and aperture-priority
AE modes. When the subject's brightness changes erratically and the
correct autoexposure cannot be obtained, the camera will change the
ISO speed within 100 - 3200 automatically to obtain a correct exposure.
Even if the settable ISO speed 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
Disable: All the shooting modes (a, s, f, d, 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
<X>. After entering the settings, select [Apply].
C.Fn I -10
Disable: All the metering modes (q: Evaluative, w: Partial, r: Spot,
e: Center-weighted average) will be selectable.
Enable: Only the metering modes set with [Register] will be selectable.
Register: To make a metering mode unselectable, uncheck the checkmark
<X>. After entering the settings, select [Apply].
160
Spot metering link to AF point

Safety shift

Select usable shooting modes
Select usable metering modes