Voigtlander 21mm f/1.8 Ultron Here is a new Leica M mount lens from Voigtlander. It is a fast f/1.8, 21mm wide angle lens. This translates to 30mm (effective FOV) for the Sony NEX sensor. The big question is, will it play well with the APS-C sensor? We are hoping that it does and give us a fast, wide angle lens similar to the Zeiss 24mm f/1.8 ZA E . The manual focus and aperture, Leica M mount, Voigtlander 21mm f/1.8 Ultron will cost £1149. It is almost twice the weight of the Zeiss 24mm. 21mm f/1.8 Ultron Specs from Voigtlander Germany: Due to its large diameter elements, you can shoot with available light even in severe light condition, and also shallow depth of field and super wide angle, this mix of features offers you a chance to emphasize main things with great bokeh. Any kind of aberration is corrected properly by the construction of 13 elements 11 groups with Aspherical element. 13 elements in 11 groups with Aspherical lens Full Metal Barrel with high stiffness and durabi