Your camera’s aperture priority mode is an exposure program that allows you to choose the aperture setting you want and the camera will then calculate the right shutter speed to use to ensure the image is correctly exposed.

Aperture priority mode is arguably the most commonly used camera mode in landscape photography. In order to ensure sharpness throughout the scene, it is usually desirable to select a relatively high aperture number, ideally at least f/14 or above. In low light, this may require a slow shutter speed and so necessitate the use of a tripod. A light-weight tripod is one of the best investments you can make if you want to improvde your landscape photography.

Many camera manufacturers indicate aperture priority mode on their camera controls with the letters Av (for ‘Aperture Value’).