Setting The Shutter Speed - Canon PowerShot S5 IS User Manual

You can change the combinations of shutter speeds and
aperture values without altering the exposure (p. 85).

Setting the Shutter Speed

Shooting Mode
When you set the shutter speed, the camera automatically selects
an aperture value 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
Use the
speed, then shoot.
If the aperture value is shown in red, the image is
underexposed (insufficient light) or overexposed (too much
light). Use the
until the aperture value shows in 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).
64
or button to select the shutter
or button to adjust the shutter speed