Unlock your potential as a photographer with this comprehensive guide to understanding and controlling exposure. Modern cameras are awash with features designed to make life easy for the user, and it is tempting to let your equipment do the work every time you point your lens. This guide aims to put you in control. It will explain how the trinity of aperture, shutter speed and ISO combine for the best results and how the various other factors at play, from dynamic range to focal length and postprocessing, can be harnessed to contribute to the quality of an image. By understanding exactly how to create the perfect exposure you will achieve mastery of your camera whatever the conditions, have the confidence to shoot in your own style and unleash your creativity.