Upgrade your Sigma camera with the Sigma 150–600mm f/5–6.3 DG OS HSM Contemporary Lens and TC-1401 Kit. This lens is specially designed for Sigma SA-mount cameras. There are 20 optical elements distributed in 14 groups, which include 1 FLD element and 3 SLD elements to deal with irregularities caused in images by excess light. Also, the super-multi-layer coating on the optics solves the issues of lens flares and ghosting. This Sigma lens comes with an optical-stabilizer system to help you capture clear pictures even when shooting handheld. The Hyper Sonic Motor ensures noise-free auto focusing. The nine-blade diaphragm creates smooth bokeh effects on images. The teleconverter provided in the lens kit increases the focal length by 1.4×. It is made of 7 optical elements in 5 groups to remove chromatic aberrations from images.