Amazon.com : Sigma 50mm f/2.8 EX DG Macro Lens for Canon SLR Cameras : Camera Lenses : Camera & Phot

Super Multi Coating reduces flare and ghosting that tends to occur when using digital SLR cameras. Amazon.com Sigma launched its first standard 50mm macro lens in 1990, and followed it up with an improved model in 1998. The advent of digital SLR cameras,

www.amazon.com