Sigma 50mm F/1.4 EX DG HSM Auto & Manual Focu Lens for Canon EF Mount
The 50mm F1.4 EX DG HSM is the latest design from independent lens maker Sigma, announced in March 2008. Sigma 50mm f/1.4 EX DG HSM Lens for Canon EF Mount. 50mm focal length; fast F1.4 maximum aperture.