A fast, high-performance 50mm prime lens for DSLR cameras from Sigma, Canon, Nikon, Pentax and Sony.The 50mm f/1.4 EX DG HSM is the first large-aperture 50mm prime lens to be manufactured by Sigma and the company has gone to considerable lengths to include the latest designs and technology. Unlike the 50mm f/1.4 primes from other manufacturers, which use designs that hark back to the 1970s, this lens is bang up-to-date, with a Hyper Sonic Motor (HSM) ensuring silent, high-speed AF; a non-rotating front element and a moulded aspherical optical component.










