high-power 500mm/1000mm f/8 manual telephoto lens for sony a7r, a7s, a7, a6500, a6300, a6000, a5100, a5000, a3000, nex-7, nex-6, nex-5t, nex-5n, nex-5r, 3n and other e-mount digital mirrorless cameras big mike's electronics the high-power 500mm/1000mm telephoto lens for sony alpha e-mount dslr is a manual fixed focus multi-coated t-mount lens that yields images with impressive peak contrast and well-controlled flare. it has a minimum focus distance of 33 feet and a 5° angle of view. it has a 67mm thread and includes a tripod mount, black lens pouch and a t-mount adapter for sony alpha e-mount slr cameras. for best results, use with mono-pod, tripod or chest supports to alleviate shake. the included 2x doubler converts this 500mm lens into a 1000mm.<br><br> when combined with the included t-mount to fit your camera system, this super telephoto works on both "full frame" cameras as well as the "aps-c" style digital slr cameras. you can use the lens in "m" manual exposure mode or "a" aperture-priority mode only. this lens' sophisticated achromatic refractor design yields images with pleasing peak contrast and well controlled flare. it can be used at maximum aperture on a very bright day for some images of moving subjects.<br><br> <b>technical info</b><br> - achromatic refractor 500mm f/8 lens in t-mount<br> - multicoated optics<br> - knurled focus ring to the front of the lens<br> - accepts 67mm filters on the front of the lens<br> - fixed tripod collar<br> - meant for use with monopods, chest supports, or tripods<br>