With the Sigma 150–600mm f/5–6.3 DG OS HSM Sports Lens and TC-1401 Kit, you are always ready for those sudden, beautiful scenes in sports and nature photography. This lens is designed for use with Sigma SA-mount cameras. It comes with an optical design that involves 24 elements in 16 groups, including 2 ‘F’ low-dispersion and 3 special low-dispersion elements that prevent chromatic aberrations and color fringes. The super multi-layered coating on this lens reduces effects of flares and ghosting. Also, when shooting handheld, you can be sure of shake-free images, thanks to the optical-stabilizer system that reduces camera shakes. The hyper-sonic motor of this lens gets you quick and quiet focus on subjects. The nine-blade diaphragm produces a lovely bokeh effect on images. This waterproof lens comes with a TC-1401 1.4× teleconverter that offers an extended focal length of 210–840mm. Additionally, this teleconverter has a 7-elements-in-5-groups construction.