- Aperture priority mode is often labeled A or Av on most digital SLRs.

- In aperture priority mode, you will have

control over the aperture size

while the camera controls the speed of the shutter.

- Once again, you might not see the difference immediately but there is a great difference between high and low aperture settings.

- What aperture priority mode does best is increase depth of field.

- With a low aperture setting or F-stop, the focus will remain on fewer objects and the aperture will remain narrow.

- A higher aperture setting or F-stop will allow more objects to come into focus simultaneously and the aperture will open wide.

- Higher aperture settings also allow for clearer shots in dimmer light and lower settings allow for clearer shots in bright areas.