Canon 0585C006 Instruction Manual page 31

When the bounce adapter is attached, or when the bounce adapter and

the wide panel are used together, underexposure may result since the
flash output decreases. Take necessary countermeasures such as
increasing ISO speed on the camera or applying flash exposure
compensation (p.24).
Since the flash guide number decreases when the bounce adapter is

attached, focusing with AF-assist beam using a series of small flashes
may not be possible. Using infrared AF-assist beam is recommended
(P.Fn-05-1/p.87).
When Quick flash (p.18) is fired with the bounce adapter attached, taking

the picture after the flash-ready lamp is lit in red is recommended since
the flash output may not be sufficient.
The flash coverage is set automatically when the bounce adapter is

attached. You cannot change the setting.
If you attach the bounce adapter to the flash when using an EOS

DIGITAL camera released up to 2004, set the white balance to <A>. If
you shoot with <Q>, appropriate white balance may not be obtained.
The flash light is further softened when the wide panel (p.33) is used

together.
If the subject is dark (underexposed) when you check the shot image,

perform the flash exposure compensation (p.24). You can also increase
the ISO speed when using a digital camera.
m Bounce
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