The camera lens determines, to a great extent, the quality of the image produced in any camera and must be a major consideration when selecting a camera and lens for serious work. This guide offers a complete, dedicated treatment of all types of lenses for all types of cameras, including digital. Explored in detail are the terminology of lenses, how different lens types function, the advantages and disadvantages of different types of lenses, and how the angle of view, aperture, shutter, and focusing abilities of a lens affect the photos taken with it. Photographers will also learn the basics of lens design, aspheric lens elements, retrofocus lenses, shift control lenses, image stabilizers, and much more.