High Definition 3.5X Telephoto Lens For The Canon EOS 7D Digital SLR Camera Which Has This(18-135mm, 17-85mm) Canon Lens Mounts on any lens with 58mm filter thread - no adapter needed Unique Lens Barrel Design - Solid Professional Build Multi Coated Optics Lens System 3 Elements in 3 Groups 72mm Front Thread for Filter Mounting