Canon PowerShot SD100 User Manual page 66

• When you use flash photography at higher ISO speeds, the chances
of white streaks appearing in the image increase the closer you
approach to the subject.
• Since a slow shutter speed is selected in dark places when the flash
is set to Off or Slow-Synchro, take care to avoid blurring the image.
- Shooting in
Be careful to hold the camera still to avoid camera shake.
- Shooting in
Fix the camera to a tripod to shoot in these modes since the
shutter speed will be slower than in the
dark in
• The flash can be fired when the upper indicator beside the
viewfinder lights a steady orange after pressing the shutter button
halfway.
• The flash may take up to approximately 10 seconds to charge. The
recharging time will vary with such factors as the shooting
conditions and battery charge. Shots cannot be taken while the flash
is charging.
• The flash fires twice. The main flash follows a preparatory pre-flash.
The exposure reading obtained from the subject with the pre-flash is
used to set the optimal flash intensity for the main flash, which is
used to capture the image.
Red-Eye Reduction
• Light reflecting back from eyes can make them appear red when the
flash is used in dark areas. Under these conditions, use the red-eye
reduction mode. For this mode to be effective, the subject must be
looking right at the red-eye reduction lamp. Try asking them to look
directly at the lamp. Even better results can be obtained by shooting
with the lens set to a wide angle, increasing the lighting in indoor
settings or approaching closer to the subject.
• The shutter will not activate for approximately 1 second after the red-
eye reduction lamp fires in order to improve the effect. If you want a
more immediate shutter response, set the flash to
64
Mode
, Mode
mode, reshooting it in
mode. If an image is
mode will make it brighter.
, or .