Canon Speedlite 470EX-AI Instruction Manual page 92

>: Setting Personal Functions
P.Fn-09:
When the <X> bounce mode switch is set to <0°>, you can set whether
or not the bounce angle can be set manually.
0: 0°
Manual bounce shooting (setting the bounce angle manually) cannot
be performed. After the bounce angle has been manually set, pressing
the shutter button halfway returns the flash head to the forward-facing
position.
1: MANUAL BOUNCE
Set to this when performing manual bounce flash photography
(manually setting the bounce angle).
In AI.B full-auto shooting mode or AI.B semi-auto shooting mode, bounce
angle correction is performed when the orientation (position) of the camera
changes, even when set to 1.
92
0° (Manual bounce setting)