Sigma Corporation of America’s New 17-50mm F2.8 EX DC OS HSM…
RONKONKOMA, NY–(/ – July 14, 2010) – /Sigma Corporation ( www.sigmaphoto.com ), a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses , cameras and flashes , is pleased to announce the release of its new 17-50mm F2.8 EX DC OS HSM lens. This large-aperture, standard-zoom lens, which was first introduced in February at Photo Marketing Association International, is designed for small chip, APS-C digital cameras and incorporates Sigma’s Optical Stabilization (OS) functionality and new, FLD glass. The 17-50mm F2.8 EX DC OS HSM is an ultra compact lens with an overall length of just 3.6 inches. The 17-50mm F2.8 EX DC OS HSM covers a focal length from a 17mm wide angle, has a minimum focusing distance of 11 inches throughout the entire zoom range and a maximum magnification ratio of 1:5. The lens is currently available in Canon mounts at all authorized Sigma dealers for the MSRP of $980, and it will be available in Nikon, Sigma, Sony and Pentax mounts in the coming weeks. The OS function offers the use of shutter speeds approximately four stops slower than would otherwise be possible. Only Sigma has made it possible for Pentax and Sony shooters to utilize an anti-shake system in either the lens or the camera body