Cosina, maker of the Voigtländer range of lenses has recently announced one of the fastest lens around, coming in at f/1.1 More information at the Cosina web site: http://www.cosina.co.jp/seihin/voigt/english/standard-e.html
The manual focus 50mm f/1.2 is one of the fastest lens from the Nikkor (Nikon) line up. More information at the Nikon web site: http://www.nikon.com.au/productitem.php?pid=136-1d3d4b0c43
The EF 50mm f/1.2L USM is one of the fastest lens from the Canon line up. More information at the Canon web site: http://www.canon.com.au/products/visual/cameras_lenses_accessories/standard_lenses/ef_50mm.aspx
