Canon PowerShot S50 User Manual page 78

Setting the Aperture (continued)
• If the shutter speed shows in red on the LCD monitor, the image is under exposed
(insufficient light) or overexposed (too much light). Adjust the aperture value using
B or A on the multicontroller until the shutter speed display turns white.
• Some aperture values may not be available with certain zoom positions.
• Functions Available in Each Shooting Mode (p. 180)
• Please note that camera shake becomes a factor at low shutter speeds. If the
camera shake warning
tripod before shooting.
• In this mode, the shutter speed with synchronized flash is 1/60 second to 1/250
second. The aperture value setting may therefore be changed automatically to
match the synchronized flash speed even if its value was set previously.
Aperture Value Display
The larger the aperture value, the smaller the lens aperture.
F2.8 F3.2
• For the correlation between aperture value and shutter speed, see page 70.
72
appears in the LCD monitor, secure the camera to a
F3.5 F4.0 F4.5 F5.0 F5.6 F6.3 F7.1 F8.0