The COLOR SKOPAR 50mm F2.2 is a manual focus standard lens optimized for full size VM mount sensors. Cosina lens designers succeeded in reducing the exterior lens barrel length to only 30mm, despite this being a 50mm F2.2 standard lens.
Leica M Mount: Voigtlander 50mm F3.5 Heliar – Leica M Mount: Boxed & MINT
Voigtlander APO-LANTHAR 50mm F/3.5 VM Type I Two-tone (Leica M) #327
[Almost MINT] Voigtlander NOKTON 50mm F1.5 Aspherical Lens LTM L39 From JAPAN
Rare [TOP MINT] Voigtlander Heliar Classic 50mm f/2 250 Jahre Leica M From JAPAN
No Fog [MINT w/ M Ring] Voigtlander Nokton 50mm f/1.5 Asph Lens L39 Japan #2648
[Exc+5] Voigtlander HELIAR 50mm f/3.5 101st Anniversary Model L39 MF Lens #2046