Voigtländer has several fast M-Mount lenses in the line-up: The Nokton with f/1.0 and the Nokton f/1.5 appear to be interesting alternatives to Leica’s similarly speced, but far more expensive Noctilux and Summilux lenses. Part 27 of our M Files series reviews the two Voigtländers in this truly classic focal length.
The Voigtländer Nokton lenses are the brand's fastest and most expensive optics. Episode 20 of The M Files reviews the 21/1.4 and the 75/1.5 with VM Mount for Leica rangefinder and other cameras.