Opteka 650-1300mm f/8 HD Telephoto Zoom Lens for Sony Alpha E-Mount a9, a7r, a7s, a7, a6500, a6300, a6000, a5100, a5000, a3000, NEX-7, NEX-6, NEX-5T, 5N, 5R and 3N Digital Mirrorless Cameras (Black) Manual focus telephoto lens compatible with full-frame sensors as well as APS-C sensors 8 Lens elements in 5 groups, low-dispersion multi-coated HD optical glass to reduce flare Great for the wildlife or nature photographer who wants to be hidden while taking photos of the subject Built-in tripod collar for improved lens balance Newly improved 2017, digitally-optimized telephoto zoom lens