Av Aperture Priority AE

In this mode, you set the desired aperture and the camera sets the shutter speed automatically to suit the subject brightness. This is called aperture-priority AE. A larger aperture opening lower f number will result in a blurred background ideal for portraits. This occurs because a lower f number decreases the depth of field range of acceptable focus . On the other hand, a smaller aperture opening higher f number will make more of the foreground and background fall within acceptable focus. A...