Opteka .43x High Definition Wide Angle With Macro & 2.2x Telephoto Lens Kit for Canon 18-55mm, 55-250mm, 70-300mm, 24mm, 28mm, 65mm, 85mm and 100mm 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