Voigtländer had two prototype Leica M-mount lenses on display at Photokina: Voigtländer Ultron 35mm f/2 Aspherical VM lens: minimum focusing distance is 0.58m, filter size is 39mm, 10 diaphragm blades Voigtländer  Color-Skopar 21mm f/3.5 Aspherical VM lens: (ultra compact classic design): minimum focusing distance is 0.50m, filter size is 39mm, 10 diaphragm blades There is no additional information on those lenses … Continue reading Two new Voigtländer lenses for Leica M-mount: Ultron 35mm f/2 and Color-Skopar 21mm f/3.5