The 650-1300mm f/8.0-16.0 Zoom Lens from Samyang is a powerful ultra-telephoto zoom lens useful in any situation where a distant subject needs to be drawn close. Low dispersion, fully multi-coated lenses mean little glare and full light transmission for shaper images. An integrated lens hood also aids in keeping unwanted light out of your images. This manual focus lens can focus on subjects as close as 16.40′ (5 m). And worth noting, when used on an APS-C format DSLR, the equivalent focal range increases to approximately 1000-2000mm (the exact equivalency depends on which camera body it is used with).