Xit XT5837XTL Elite Series 3.7x Xtreme High Definition Telephoto Lens is great to really get those far away shots brought in close. Great for sports and animal photos as well as candid"s! Multi-coated high quality optical glass. Comes complete with a protective case and front and rear caps. Limited lifetime warranty. Works with 52mm & 58mm front thread (filter size) lenses.