PowerShot S3 IS Camera User Guide Advanced

Aperture Setting Display

z The larger the aperture value the smaller the lens opening, allowing

less light to enter the camera.

z You can change the combinations of shutter speeds and aperture

values without altering the exposure (p. 70).

Manually Setting the Shutter Speed and Aperture

You can manually set the shutter speed and aperture to shoot

images.

1 Use the

button to select the shutter speed, and

use the

button to select the aperture value,

then shoot.

z When you press the shutter button halfway, the difference between

the standard exposure

and the selected exposure appears on the

LCD monitor (or viewfinder). If the difference is more than 2 stops,

"-2" or "+2" appears on the LCD monitor (or viewfinder) in red.

* The standard exposure is calculated by measuring the brightness according

to the selected metering method.

F2.7 F3.2 F3.5 F4.0 F4.5 F5.0 F5.6 F6.3 F7.1 F8.0

Safety Shift

With and modes, if [Safety Shift] is turned [On] in the

Rec. menu, the shutter speed or aperture value is automatically

adjusted for the correct exposure when it cannot be otherwise

obtained.

z Safety Shift is disabled when the flash is enabled.

Shooting Mode

z If the zoom is adjusted after these values are set, the aperture

value or the shutter speed may change in accordance with

the zoom position.

z The brightness of the LCD monitor (or viewfinder) matches

the selected shutter speed and aperture value. When you

select a fast shutter speed or shoot a subject in a dark place,

raise the flash, and then set it to (Flash On with red-eye

reduction) or (Flash On), the image will always be bright.