Custom Function Settings
Custom
Function
No.
C.Fn-01 Auto Power Off activation
Slave unit's auto power off
C.Fn-02
time
C.Fn-03 Auto zoom for image size
C.Fn-04 AF-assist beam OFF
C.Fn-05 Modeling flash
LCD panel display when
C.Fn-06
shutter button pressed
halfway
C.Fn-05-1:Convenient when you want to check the depth of field. (p.28)
C.Fn-06 can be set only with Type-A cameras.
If "AF-assist beam OFF" is set with the Speedlite or camera, the AF-
assist beam will not be emitted.
Automatic Setting of Flash Coverage for the Camera's Image Size
EOS digital cameras have one of three image sizes. The lens' effective
focal length will differ depending on the camera's image size. The
Speedlite automatically recognizes the EOS digital camera's image size
and automatically sets the flash coverage for lens focal lengths from
24mm to 105mm.
When the Speedlite is attached to a compatible camera, <s> will
appear on the Speedlite's LCD panel.
Setting
Item
No.
0
1
0
1
0
1
0
1
0
1
0
1
Setting Description
ON
OFF
Auto power off after 60 min.
Auto power off after 10 min.
Enabled
Disabled
Disabled
Enabled
Enabled
Disabled
Display maximum flash range. (Displays up
to max. 18 m/60 ft)
Display aperture.
21