Opteka .43x High Definition Wide Angle With Macro & 2.2x Telephoto Lens Kit for Nikon 18-55mm, 24mm, 28mm, 35mm, 40mm, 50mm, 55-200mm, and 55mm Lenses Mounts on existing lens and can be used with zoom lenses High-index / low-dispersion digital multi-coated optical glass with built-in macro lens for extreme close-up shots High speed auto-focus / Infrared compatible; Maximize day and night shots by providing maximum light and image transmission Wide-angle and telephoto converters affect the full zoom range of your camera's lens A wide-angle converter increases your angle of view while a telephoto increases your zoom