Aperture is the opening of a lens on your camera that allows a certain amount of light to go through. The lower f/stops give more exposure because they represent the larger apertures, while the higher f/stops give less exposure because they represent smaller apertures. When taking a picture located in a dark place you would usually opt for an F stop of It can be the most important technique when taking photos. This technique also links to Shutter Speed as the faster the shutter speed, the larger the aperture F stop will be. The F stops range from f/1 - f/32.