Voigtlander Nokton Aspherical 40mm F/1.2 (M-Mount) LEN1432

Leica M-Mount Lens Aperture Range: f/1.2 to f/22 Two Aspherical Elements Manual Focus Design Minimum Focusing Distance: 1.6' Rangefinder Coupled Focusing: 2.3' Filter Thread: 52mm Rounded 10-Blade Diaphragm