Large aperture, standard prime lens has superior peripheral brightness and corrects sagittal coma flare
The Sigma Corporation is pleased to announce the new large aperture 50mm F1.4 EX DG HSM standard lens.
This is a large aperture prime lens with a standard focal length of
50mm, ideal for all digital SLR cameras. This lens has superior
peripheral brightness even at the maximum aperture and corrects a
possible sagittal coma flare. This lens is perfectly suited for a wide
range of subjects enabling outstanding, sharply defined images against
a nicely blurred background. The fast, F1.4 aperture makes this lens
desirable for use with Digital SLR cameras. This lens effectively
becomes an 80mm medium telephoto lens on digital cameras with APS-C
size image sensors. The optimum optical design and molded glass
aspherical lens elements provide excellent correction for all types of
aberrations. The super multi-layer lens coating reduces flare and
ghosting. Superior optical performance is also ensured throughout the
focusing range. This lens has a minimum focusing distance of 45cm
(17.7”) and has maximum magnification of 1:7.4. It creates a very
attractive blur, even when a small aperture is used.
This lens incorporates HSM (Hyper Sonic Motor), which ensures a
quiet and high-speed AF as well as full-time manual focus override.
Fittings: Sigma, Canon, Nikon, Pentax*, Sony*
*If the camera body does not support HSM, auto focus will not be available. | 
