Cannon PowerShot Camera Manual De Usuario

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 Contents
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 Chapter Contents
Still Images
Specific Aperture Values 
([Av] Mode)
Set your preferred aperture value before shooting as follows. 
The camera automatically adjusts the shutter speed to suit your 
aperture value.
1
 Enter [B] mode.
z
z
Set the mode dial to [
B].
2
 Set the aperture value.
z
z
Turn the <
5> dial to set the 
aperture value.
Orange display of shutter speeds when you press the 
shutter button halfway indicates that the settings deviate 
from standard exposure. Adjust the aperture value until the 
shutter speed is displayed in white, or use safety shift (see 
below).
[
B]: Aperture value (size of the opening made by the iris in the 
lens)
To avoid exposure problems in [
M] and [B] modes, you can 
have the camera automatically adjust the shutter speed or aperture 
value, even when standard exposure cannot otherwise be obtained. 
Press the <
n> button and set [Safety Shift] on the [4] tab to 
).  
However, safety shift is disabled when the flash fires.