Canon WP-DC22 Guide D'utilisation page 34

Using the Flash
In order to evenly distribute light from the flash,
please attach the diffusion plate.
• Do not scratch the surface of the diffusion
plate, as this may prevent flash light from
being diffused properly.
• Attach the diffusion plate for flash
photography because image edges may
darken otherwise. Please note, however,
that the effectiveness of the diffusion plate
may be impaired if the subject is too close to
the camera.
Attaching the Diffusion Plate
1
Thread the cord through the strap
mount.
Diffusion Plate
15