Canon SX240 HS Manual Do Utilizador

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Set your preferred aperture value before shooting as follows. The camera 
automatically adjusts the shutter speed to suit your aperture value.
For details on available aperture values, see “Specifications” (p. 34).
Enter 
B mode.
Set the mode dial to 
B.
Set the aperture value.
Turn the 
5 dial to set the aperture value.
Specific Aperture Values (Av Mode)
Still Images
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 
However, safety shift is disabled when the flash fires.