Voigtlander's ultra-wide for M-mount — the 15mm f/4.5 III optimised for digital M sensors.
The Voigtlander 15mm f/4.5 Super Wide Heliar III is an ultra-wide prime from Voigtlander in VM (Voigtlander M) configuration for Leica M mount, representing the third generation of this design with updated coatings and optical refinements. The 15mm provides an extreme wide-angle field of view on full-frame bodies.
The lens delivers 15mm at f/4.5 maximum aperture with Leica M bayonet, 6-bit coding for digital M body recognition, manual focus and aperture, and full-frame 35mm coverage. An external viewfinder (sold separately) is required for composition on film M bodies, as no M body has 15mm framelines.
The Super Wide Heliar at 15mm is among the widest lenses available for the Leica M system and is used for architecture, landscape, and environmental photography where extreme wide-angle perspective is desired. Voigtlander's third-generation design improves on earlier versions with better centre and corner performance.
Verify 6-bit coding recognition on the intended digital M body. An external 15mm viewfinder is required for film M bodies — confirm availability. Inspect element condition and coating. Test corner sharpness at f/4.5 on a full-frame sensor.