Canon PowerShot SD870IS User Manual page 213

Appendix
1211
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
Bracket
(Comes with the flash)
• The flash charge time will lengthen as the battery charge
gets weaker. Always set the power/mode switch to [OFF]
when you finish using the flash.
• Be careful not to touch the flash window or sensor windows
with your fingers while the flash is in use.
• The flash ma_ fire if another flash is being used in close
proximity.
• The High-Power Flash may not fire outdoors in daylight or
when there are no reflective items
• For continuous shooting, although the flash fires for the first
shot, it does not fire for subsequent shots.
• Fasten the attachment screws securely so that they do not
loosen. Failure to do so may lead to the dropping of the
camera and flash resulting in damage to both.