Canon PowerShot G1 X Mark III PowerShot G1X MarkIII Camera User Guide - Page 100

Specific Aperture Values ([Av] Mode) Still Images Movies 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 "Aperture" (= 223). 1 Enter [ ] mode. zzHold down the mode dial release button and turn the mode dial to [ ]. 2 Set the aperture value. zzTurn the [ value. ] dial to set the aperture ●● Orange display of the shutter speed when you press the shutter button halfway indicates that the optimum exposure has not been obtained. Adjust the aperture value until the shutter speed is displayed in white, or use safety shift (see below). ●● [ ]: Aperture value (size of the opening made by the diaphragm in the lens) ●● In [ ] and [ ] modes, press the [ ] button and set [Safety shift] on the [ 6] tab to [On] (=31) to have the camera automatically adjust the shutter speed and aperture value when there are exposure problems, so that you can shoot at the optimum exposure. However, safety shift is disabled when the flash fires. Specific Shutter Speeds and Aperture Values ([M] Mode) Still Images Movies Follow these steps before shooting to set your preferred shutter speed and aperture value to obtain the desired exposure. For details on available shutter speeds and aperture values, see "Shutter" (= 223) and "Aperture" (= 223). 1 Enter [ ] mode. zzHold down the mode dial release button and turn the mode dial to [ ]. (1) (2) (3) (4) 2 Configure the setting. zzTurn the [ speed (1). ] dial to set the shutter zzTurn the [ ] dial to set the aperture value (2). zzWhen the ISO speed is fixed, an exposure level mark (4) based on your specified values is shown on the exposure level indicator for comparison to the standard exposure level (3). The exposure level mark is shown as [ ] or [ ] when the difference from standard exposure exceeds 3 stops. zzThe ISO speed is determined and screen brightness changes when you press the shutter button halfway after setting the ISO speed to [AUTO]. If standard exposure cannot be obtained with your specified shutter speed and aperture value, the ISO speed is displayed in orange. Before Use Basic Guide Advanced Guide Camera Basics Auto Mode / Hybrid Auto Mode Other Shooting Modes P Mode Tv, Av, M, and C Mode Playback Mode Wireless Features Setting Menu Accessories Appendix Index 100