Duplicate Voigtlander APO-Lanthar 35mm for M — same reference-class lens as ID 3993.
The Voigtlander Apo-Lanthar 35mm f/2 ASPH VM is the Leica M-mount version of Voigtlander's premium apochromatic 35mm prime, designed for Leica M rangefinder cameras. The VM designation confirms Voigtlander M bayonet coupling; ASPH indicates aspherical elements alongside the Apo-Lanthar apochromatic correction.
The lens delivers 35mm at f/2 maximum aperture with apochromatic and aspherical optical correction for zero longitudinal chromatic aberration, Leica M bayonet with 6-bit coding, rangefinder-coupled focusing, manual aperture, and full-frame coverage.
The Apo-Lanthar VM combines two premium optical corrections in a rangefinder lens: apochromatic (eliminating chromatic fringing) and aspherical (eliminating spherical aberration). For M-mount photographers who prioritise analytical sharpness and clean bokeh over maximum aperture, this is the reference standard for 35mm.
Test rangefinder coupling accuracy at multiple distances. Verify 6-bit coding recognition on a digital M body. Inspect the Apo-Lanthar coating condition. Check aperture blade operation. Compare against id=4685 (Sony FE version) — different mounts, genuine distinct products.