Canon Powershot S2 IS PowerShot S2 IS Camera User Guide - Page 161

Using an Externally Mounted Flash (Sold Separately) 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 Socket Bracket (Comes with the flash) z When in M shooting mode the high-power flash will not fire. z The flash charge time will lengthen as the battery charge gets 10 weaker. Always set the power/mode switch to [OFF] when you Appendix finish using the flash. z Be careful not to touch the flash window or sensor windows with your fingers while the flash is in use. z In outdoor settings in the daylight, the flash may not detect illumination from the camera's built-in flash and may not fire. z The flash may fire if another flash is being used in close proximity. z The flash may not fire if there are no reflective items in its metering field. z For continuous shooting, although the flash fires for the first shot, it does not fire for subsequent shots. z If the battery usage time has considerably diminished, wipe the battery terminals well with a dry cloth as the terminals may be soiled with oil from one's skin or other dirt. z If the battery is used in cold regions (0 °C /32 °F or lower), you are recommended to carry a spare lithium battery (CR123A or DL123). Keep the spare battery warm in your pocket until immediately before using it, and exchange it frequently with the battery in the flash. Continued on next page 159