Canon EOS 70D Operation Manual - Page 162

f: Aperture-Priority AE In this mode, you set the desired aperture and the camera sets the shutter speed automatically to obtain the standard exposure suiting the subject brightness. This is called aperture-priority AE. A higher f/ number (smaller aperture hole) will make more of the foreground and background fall within acceptable focus. On the other hand, a lower f/ number (larger aperture hole) will make less of the foreground and background fall within acceptable focus. * stands for Aperture value (aperture opening). Blurred background (With a low aperture f/number: f/5.6) Sharp foreground and background (With a high aperture f/number: f/32) 1 Set the Mode Dial to . 2 Set the desired aperture. While looking at the LCD panel, turn the dial. 3 Focus the subject. Press the shutter button halfway. X The shutter speed is set automatically. 4 Check the viewfinder display and shoot. As long as the shutter speed is not blinking, a standard exposure will be obtained. 162