Photog's Choice is a term used to describe the best equipment for photographers. It typically includes a LENS, an SLR (Single LENS Reflex) camera, and a zoom LENS. A LENS is a curved piece of glass or plastic that is used to focus light onto a camera's sensor. An SLR camera is a type of camera that uses a mirror and prism system to direct light from the LENS to the viewfinder. A zoom LENS is a LENS that can be adjusted to change the magnification of the image.