Opteka 420-1600mm f/8.3 HD Telephoto Zoom Lens for Pentax K-1, K-3 II, KP, K-70, K-S2, K-S1, K-500, K-50, K-30, K5 IIs, K-7, K-5, K100D, K110D and K10D Digital SLR Cameras Newly improved 2017, manual focus, digitally-optimized telephoto zoom lens HD, super multicoated glass optics for the sharper images 4 Elements in 2 groups Rotating tripod mount Includes 420-800mm Lens, 2x Teleconverter, Carrying bag, and lens caps included