Sigma Corporation of America's New 8-16mm F4.5-5.6 DC HSM Lens Now Available
23. April 2010 14:51 ET | Sigma Corporation of America
RONKONKOMA, NY--(Marketwire - April 23, 2010) -  Sigma Corporation of America (www.sigmaphoto.com), a leading researcher, developer, manufacturer and service provider of some of the world's most...