Canon PowerShot G11 PowerShot G11 Camera User Guide - Page 101

Setting the Aperture Value You can set the aperture to a value at which you want to shoot. The camera will set the appropriate shutter speed for the aperture value you set. B stands for "Aperture value". Set the mode dial to B. Make the setting. ● Turn the  dial to set the aperture value. Shoot. Available Aperture Values F2.8, F3.2, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0 • The fastest shutter speed when using the flash is 1/2000 second. Even if a speed faster than 1/2000 second is chosen, the camera automatically sets the speed to 1/2000 second or lower. However, if [Safety FE] is set to [Off] (p. 105), the fastest speed is 1/500 second. • Depending on the zoom position, some aperture values may not be available. What if shutter speed is displayed in orange? If the shutter speed displays in orange when the shutter button is pressed halfway, the scene has exceeded the correct exposure limits. Adjust the aperture value until the shutter speed displays in white. Safety shift can also be used. Safety Shift With M and B modes, if [Safety Shift] is set to [On] in the 4 tab, the shutter speed or aperture value is automatically set for the correct exposure when it cannot otherwise be obtained. Safety Shift is disabled when the flash is enabled. 101