Aperture

Aperture is set on cameras by turning a specified dial on the camera body. In older, fully manual cameras, this is a dial on the camera lens that is marked with F-Stop numbers. In newer cameras the aperture is generally displayed on an LCD screen while the photographer turns a small wheel near the shutter release button to adjust the setting. The exact placement of the wheel will vary from camera to camera. On point and shoot cameras, there may not be a control to select specific aperture or F-Stops. Instead, you may need to understand your camera's preprogrammed modes to obtain the desired aperture. Many SLR cameras also have these preprogrammed modes as well as a few additional modes of fine control.