Canon PowerShot A550 User Manual page 137

Using an Externally Mounted Flash
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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 ----:-:-~~---:--=-~--r----===-.
Bracket
(Comes with the flash)
»
"C
"C
(1)
~
c.
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