Canon POWERSHOT G12 User Manual page 30

Shooting with Stow Synchro
You can make the main subject, such as people, appear bright by having the
camera provide the appropriate illumination with the flash. At the same time,
you can use a slow shutter speed to brighten the background that the light
from the flash cannot reach.
.... i:!i !i !ii!iy
Choose _.
@ After pressing the _ button, press the 4_
buttons or turn the _ dia! to choose _,
then press the @ button.
Once set, _ wil! appear on the screen.
Shoot.
Even if the flash fires, ensure that the
subject does not move until the shutter
sound ends.
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