The Sigma 50mm f/1.4 DG HSM Art lens is a professional-level fixed focal length lens made by Sigma Corporation. It was announced at CES in January 2014 and immediately became highly anticipated amid reports that Sigma was not aiming to compete against Canon or Nikon's 50mm prime lenses but rather the newly released Zeiss Otus 55/1.4, a lens costing US$4000. Retail prices for the Sigma 50mm lens had not yet been announced but it was initially expected that it would sell for around US$1350. However, when official pricing was announced on April 11, 2014, the retail price was even lower: US$950.