To really take creative control over photographs on your Nikon D5200, step up to one of these exposure modes, which enable you to adjust aperture (f-stop) to manipulate depth of field (the zone of sharp focus) and to adjust shutter speed to determine whether moving objects appear sharply focused or blurry. You also gain access to some features not available in the fully automatic modes, such as the option to adjust flash power and tweak white balance.