The Sigma 50mm f/1.4 EX DG HSM is a high quality, standard focal length lens which gives you an alternative to your own brand 50mm primes, with some added new features. These added features include an aspheric element for correcting chromatic aberrations, a rounded diaphragm for more pleasing bokeh, a large lens barrel to cut
Sigma 50mm f/1.4 EX DG HSM: Quality Wide Open
