opteka high definition 500mm f 8 preset telephoto lens for sony alpha a900 a850 a700 a100 a200 a300 a350 a230 a330 a380 a450 a500 a550 a290 a390 a560 a580 a33 a55 a55v digital slr cameras
an opteka high definition 500mm preset telephoto lens incorporates not only computer optical design but also the latest optical multi-coating techniques . the process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp high contrast pictures . preset lenses are designed to retain a full range of exposure automation and metering capabilities of the cameras on which they are mounted . this lens is great for nature and sports photography . the amazing power of this lens gives you the equivalent of looking through a pair of 10x power binoculars . it has a manual preset diaphragm a rotating tripod mounting collar and a soft lens pouch . advances in high-index low-dispersion optical glasses new barrel materials and exotic anti-reflection coatings along with the latest in computer-aided-design computer-aided-manufacturing are combined to produce lenses of unprecedented quality . diamond-cut from crystal-clear water-white optical glass opteka lenses are ground and polished to a precise precision . specifications filter size 67mm f stop range f 8.0 fixed minimum focus distance 33.0 10.0 m angle of view 4.1 x 2.7 wxh groups elements 4 4 length 11.7 297mm maximum diameter 2.8 71mm weight 1.41 lbs 640g included items opteka 500mm f 8 telephoto preset lens t-mount lens adapter lens caps lens pouch 10 year warranty