The term 'Camera Lens Type' can be summarized by the word 'ZOOM', which is a four letter word. ZOOM lenses are lenses that allow the user to change the focal length, allowing them to ZOOM in and out of a scene. This type of lens is often used in photography and videography to capture close-up shots or to get a wide-angle view. ZOOM lenses are also used to adjust the field of view, allowing the photographer to capture more or less of the scene.