Sigma Corporation of America Announces US Pricing, Availability of 85mm F1.4 EX DG HSM Lens RONKONKOMA, NY--(Marketwire - October 14, 2010) -  Sigma Corporation of America (www.sigmaphoto.com), a leading researcher, developer, manufacturer and service provider of some of the world's...

Sigma Corporation of America's New 8-16mm F4.5-5.6 DC HSM Lens Now Available 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...

Sigma Corporation Unveils First-Ever Optically Stabilized Lens for Pentax and Sony Digital Cameras RONKONKOMA, NY--(Marketwire - June 18, 2009) - Sigma Corporation (www.sigmaphoto.com), a leading researcher, developer, manufacturer and service provider for some of the world's most impressive lines...

DP2 High-Definition Digital Camera Now Available Through All US Sigma Authorized Dealers RONKONKOMA, NY--(Marketwire - May 20, 2009) - Sigma Corporation of America (www.sigmaphoto.com), a leading researcher, developer, manufacturer and service provider for some of the world's most...