Canon POWERSHOT D20 User Manual page 10

You can have the flash fire for each shot. For details on the flash range, see
"Flash Range" (see "Specifications" in the Getting Started guide).
Press the _ button, press the 4_ buttons to
choose _., and then press the @ button.
Once the setting is complete, _ is displayed.
_ Shoot_ng with SJow Synehro i/
With this option, the flash fires to increase the brightness of the main subject _
(such as people) while the camera shoots at a slow shutter speed to increase
the brightness of the background that is out of the flash range.
For details on the flash range, see "Flash Range" (see "Specifications" in the
Getting Started guide).
Configure the setting.
Press the _ button, press the _ buttons to
choose _*, and then press the _ button.
Once the setting is complete, _ is displayed.
Shoot.
Even after the flash fires, ensure that the
main subject does not move until the shutter
sound is finished playing.
dd_ ount the camera on a tripod or take other measures to keep it still
and prevent camera shake. In this case, set [IS Mode] to [Off]
(p. 119).
117