The 3.5X Telephoto Lens Attaches right on to your existing lens system by threading directly on to it filter threads just like a filter would, With this powerful lens you can gat a magnification of 3 time more than your existing system, constructed with; 4 elements in 4 groups (Fully Multi-Coated), High-Index Low-Dispersion Optical Glass, Anti-Reflection Coating and Steel Barrel Construction you can really make the most of your telephoto shootings. Package Includes: 3.6x Telephoto Lens UV(0) protective filter Front Lens Cover Rear Lens Cover Leather Bag 43-52mm, 46-52mm, 52-52mm and 55-52mm Ring Adapters Necessary Tube Adapter Included