Voigtlander VM pancake at 40mm for native Leica M mount, aspherical Heliar optics at ultra-compact 85g.
The Voigtlander Heliar 40mm f/2.8 Aspherical VM is a standard prime for the Leica M bayonet mount. VM suffix = Voigtlander M (Leica M bayonet) — distinct from the LTM screw-mount sibling (id 2622). Aspherical element. Leica M mount.
f/2.8 maximum aperture. 40mm focal length (full-frame near-normal prime). Aspherical element. VM (Leica M bayonet). Manual focus. Rangefinder-coupled. Leica M mount.
The Heliar 40mm VM mounts directly on Leica M cameras without an adapter — unlike the L39 screw version (id 2622). The 40mm perspective is a natural, near-normal field of view. Rangefinder-coupled for focus confirmation on M cameras.
On the used market the Voigtlander Heliar 40mm f/2.8 Aspherical VM is a compact Leica M prime. Condition checks: front element, rangefinder coupling, focus ring. Leica M mount — VM bayonet.