Canon PowerShot S30 - Manual (Page 68)

66 Shooting - Selecting Particular Effects
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• If the aperture value shows in red, the image is under- or overexposed (insufficient
light). Adjust the shutter speed using B or A on the multicontroller until the
aperture value display turns to white.
• The nature of CCD image sensors is such that noise in the recorded image
increases at slow shutter speeds. This camera, however, applies special processing
to images shot at shutter speeds slower than 1.3 seconds to eliminate the noise,
thereby producing high-quality images. Nevertheless, a certain amount of
processing time may be required before the next image can be shot.
Setting the Shutter Speed
When you set the shutter speed in the shutter speed-priority AE mode, the camera
automatically selects an aperture setting to match the brightness. Faster shutter
speeds allow you to catch an instantaneous image of a moving subject while
slower speeds create a flowing effect and allow you to shoot without a flash in
dark areas.
1 Turn the shooting mode dial to .
• The shutter speed appears on the LCD monitor if it is
on.
2
Select a speed using B or A on the
multicontroller.
3
Shoot the image.
• The correct exposure has been set if the shutter
speed and aperture settings show in white.