Opteka 500-1000mm f/8 HD Telephoto Mirror Lens with 72" Monopod, 2x Converter, T-Mount Adapter, 10pcs Cleaning Kit for Sony E-Mount a9, a7r, a7s, a6500, a6300, NEX-7, NEX-5R Digital Mirrorless Cameras ADVANCED OPTICS: Featuring an optimized design, this lens uses mirrors and a series of 9 optical glass elements in 8 groups to reduce chromatic and spherical aberrations. A anti-reflective coating suppresses lens flare and ghosting for increased contrast and color fidelity. SUPER ZOOM: Manual focus 500mm or 1000mm with the 2x converter, this lens is not only a superb long range choice, but also performs well in a variety of scenes from sports and surveillance to everyday shooting. SOLID CONSTRUCTION: Full metal body and rear mount allow this lens to withstand wear and tear much better than plastic lenses while commanding a rugged, solid feel when using. COMPACT AND LIGHTWEIGHT: Mirrors allows this lens to be much shorter than it would need to be without the mirrors. At 3.4-inches long, this 500mm lens is one of the shortest telephoto lenses. BOX INCLUDES: Opteka 500mm f/8 HD Telephoto Mirror Lens, High Definition 2X Telephoto Converter for Opteka 420-800mm/650-1300mm/500mm and 800mm SLR Lenses, Wired Remote Shutter Release Cord for Sony Alpha Digital SLR Cameras (10' Cord), T-Mount Adapter for Sony E-Mount Digital Cameras, 72" Monopod with Quick Release, Deluxe 10 Piece Camera Care Cleaning Kit, 47th Street Photo Microfiber Cleaning Cloth.