The Samyang 100mm T3.1 VDSLR ED UMC MACRO is a macro, telephoto, manual-focus cine lens designed for full frame sensor sizes. The maximum close-up magnification is 1:1. This macro lens with vivid colour and soft out-focusing is the ideal lens for close-up images, but it can also be used as a 100mm telephoto lens for landscapes and portraits. A focus gear ring is installed for follow focus systems and the aperture adjusts quietly and smoothly with the de-coupled aperture gear ring. Distance scale and T numbers are marked on both sides of the lens for convenience.The fast T3.1 maximum aperture allows precise control when shooting under all exposure conditions.