Canon PowerShot S45 Digital Camera User Manual


 
55
Shooting - Letting the Camera Select Settings
When shooting with a high ISO sensitivity and using the built-in flash, there is
more of a chance of overexposure the closer you are to the subject.
Some settings are not available with certain Shooting modes. Please refer to
Functions Available in Each Shooting Mode (p. 180)
The flash fires twice. A pre-flash will fire and will be followed by the main flash.
The pre-flash is used by the camera to obtain the subjects exposure data so that
the main flash can be set to the optimal intensity for the shot.
The fastest shutter speed for flash synchronization is 1/250 second. The camera
automatically resets the shutter speed to 1/250 second if a faster speed is selected.
The flash may take up to approximately 10 seconds to charge in some cases.
Actual times will vary according to usage and the battery charge.
The flash fires with automatic adjustments when [Flash Adjust] is set to [Auto] in
the [
(Rec.)] menu. When shooting in mode, or with [Flash Adjust] set to
[Manual], the flash fires fully or with the manually set adjustments.
The [
(Flash)] (flash exposure) and the [Flash Output] can be changed (p. 93).
The flash setting is saved when the camera is turned off in the
, , , and
Shooting modes.
When shooting with [Slow Synchro] set to [On], we recommend the use of a
tripod to prevent camera shake.
When shooting with the flash, light may reflect off dust particles or insects in the
air and appear as white dots or white asterisks on the image. This occurs more
frequently in the following conditions:
When shooting at the wide-angle end.
When shooting with a high aperture value in the aperture-priority AE mode.
This is a phenomenon that occurs with digital cameras and does not constitute a
malfunction.
1
In the [ (Rec.)] menu, set [Red-eye] to [On].
When shooting with the red-eye reduction function, the subjects must look right
at the red-eye reduction lamp for this mode to be effective. 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.
Setting the Slow Synchro
You can shoot images using the flash with a slow shutter speed. This helps avoid
dark backgrounds when shooting night scenes or with indoors lighting conditions.
1
In the [ (Rec.)] menu, set [Slow Synchro] to [On].