Voigtlander Ultron 28mm f/2.0 Lens with Leica M Mount - Black
Smaller and lighter than its previous LTM incarnation, this wide-angle lens provides better results at the same cost! It has a half-moon style focusing tab.46mm filter size with close focus of .7 meters. 10 Elements in 8 groups. 8.6 oz or 244 grams. F-stops 2 to 22 (great range-- suitable for serious street photography).