The Tiffen 58mm Close-up Filter Set contains three close-up lenses that bring you closer to the subject in the frame. These lenses combine with your existing lens with a 58mm front thread. The close-up lenses have +1, +2, and +4 strengths that let you modify the focus at variable distances. They produce a macro effect with any lens. The close-up filters have their glasses made of ColorCore technology that ensures high optical clarity. These filters have a dual threaded design to add other filters over them.