Canon EOS-1DS Mark III Instruction Manual page 165

Custom Function Settings
Enables or disables the firing of an external flash or nonoCanon flash
connected to the PC terminal.
O: Enable
1 : Disable
Convenient when you want to use the external flash's AFoassist beam
only. Note that whether or not the AFoassist beam is emitted is
dependent on the C.Fn Ill -14 setting.
0: Disabme
1 : Enable
The viewfinder information will be displayed even during an exposure. Displays the
exposure setting, number of remaining shots, etc., during continuous shooting.
0: Off
1: On during Bulb
If the LCD panel's illumination is on (p.102) and you take a bulb
exposure, the illumination will continue until the bulb exposure ends.
This is convenient when you are taking a bulb exposure in low light and
want to check the exposure time.
What is displayed on the LCD monitor when you press the <INFO.> button
when the camera is ready to shoot can be changed.
0: Disptays camera settings
Displays the camera settings. (p.186)
1 : Disptays shooting functions
Displays shooting functions as found on the top LCD
panel and in the viewfinder. When the display is on, you
can stitl press the < E_ >button and select the AF point
on the LCD monitor.
This is convenient when it is difficult to set the camera
settings white viewing the top LCD panel, when you are
shooting straight up, or when the camera position or
point of focus is fixed and you only want to change the camera settings during shooting.
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