Voigtländer 28mm f/1.9 Ultron,Voigtlander 28mm f/1.9 Review, or: A cautionary tale of Actual vs. the Perceived need of a fast lens - 35mmc,Voigtländer 28mm f/1.9 Ultron,Voigtlander 28mm f/2.0 Ultron Vintage Aspherical VM Lens BA366C,Cosina Voigtlander Ultron 28mm F/1.9 Aspherical LSM | LENS-DB.COM