A lightweight hyper-telephoto zoom lens featuring high usability and outstanding optical performance. The same focal ranges for different purposes. The first hyper-telephoto zoom lens from our Contemporary line for better usability. On the one hand, the product concept of the SIGMA 150-600mm F5-6.3 DG OS HSM Sports is to achieve the best optical and action-capture performance to meet the requirements of professional photographers. On the other hand, that of the SIGMA 150-600mm F5-6.3 DG OS HSM Contemporary is to achieve a lightweight and compact construction for higher usability with similar specifications. It has put a special emphasis on its optical performance by incorporation of 1 FLD and 3 SLD glass elements, optimization of lens power distribution and minimise d chromatic aberration of magnification. An issue for hyper-telephoto lenses in particular at the telephoto end, optical aberrations have been minimise d throughout the zoom range. Dust- and splash-proof to facilitate photography in the field and featuring a detachable tripod socket for more convenient handheld photography, this lens is a lightweight high-performance model offering outstanding usability.