"Why would I want to use the manual mode if my camera can automatically adjust these settings for me?" Well, for the same reason that professional photographers use manual mode: Control. You see when you let your camera automatically choose it's exposure settings based on the information it's sensors are giving it, your camera will strive to expose the image as close to what the human eye would perceive the scene. However the problem with this is not only that it sometimes gets it wrong, but also that the way the eye might see a scene is many - if not most - times not the most...