Sigma Corporation's New APO 50-500mm F4.5-6.3 DG OS HSM Now on Shelves
March 19, 2010 15:02 ET
|
Sigma Corporation of America
RONKONKOMA, NY--(Marketwire - March 19, 2010) - Sigma Corporation (www.sigmaphoto.com), a leading researcher, developer, manufacturer and service provider of some of the world's most impressive...
Sigma Corporation Releases Two New Lenses in 18-50mm and 50-200mm Ranges
June 22, 2009 10:21 ET
|
Sigma Corporation of America
RONKONKOMA, NY--(Marketwire - June 22, 2009) - Sigma Corporation (www.sigmaphoto.com), a
leading researcher, developer, manufacturer and service provider for some
of the world's most impressive lines...