Canon PowerShot SX40 HS PowerShot SX40 HS Camera User Guide - Page 165

Changing Shooting Function Settings If you set the mode dial to G, you can change the settings in the 4 tab (p. 43). Before attempting to shoot using a function explained in this section in modes other than G, check if the function is available in those modes (pp. 200 - 203). Switching the Focus Setting The camera focuses on whatever it is aimed at even when you do not press the shutter button. However, you can set it so that the camera only focuses when the shutter button is pressed halfway. z Choose [Continuous AF], then press the qr buttons to choose [Off]. Since the camera focuses continuously On until you press the shutter button halfway, it allows you to shoot without missing photo opportunities. The camera does not focus Off continuously, thereby conserving battery power. Turning Off the AF Assist Beam The lamp will automatically light to assist focusing in low light conditions when you press the shutter button halfway. You can turn off the lamp. z Choose [AF-assist Beam], then press the qr buttons to choose [Off]. 165