ABSTRACT
Even the most basic camera generally has what the author refer to as the primary settings. Photographers must work hard to capture the best possible representative image of what their eye sees easily, and to be successful, they must understand the limitations of and trade-offs required by these primary settings. Aperture is the size of the opening in the camera that allows light to pass through to whatever medium photographer are using to capture it, be it film or computer chip. The aperture setting is also known as f-stop of the lens. This number is found by dividing the focal length of the lens by the diameter of the lens opening. A lens is usually specified with two numbers: the focal length and the maximum aperture. Shutter speed refers to the length of time that the shutter curtain at the back of the camera is open, exposing the capture medium to light passing through lens and its aperture.
