Using An Externally Mounted Flash (Sold Separately); High-Power Flash Hf-Dc1 - Canon POWERSHOT A630 User Manual

High-Power Flash HF-DC1
This flash is used to supplement the camera's built-in flash when
the subject is too far away for proper illumination. Use the following
procedures to affix the camera and High-Power Flash to the
supporting bracket.
Please read the instructions accompanying the flash along with this
explanation.
Tripod Sockets
I
Bracket
(Comes with the flash)
"o
"1o