Standard M-mount prime lens with f/2 aperture for Leica M-system cameras.
The Leica Summicron-M 50mm f/2 Typ 11816 is a specific production variant of the current Summicron-M 50mm f/2, identifiable by its Leica product number. The Summicron 50mm is one of the most enduring lens designs in Leica's history, with the current version maintaining 6-element construction while delivering exceptional modern optical performance.
50mm focal length, f/2 maximum aperture, Leica Summicron optical formula (6 elements), Leica M bayonet mount, anodised finish, rangefinder-coupled.
The current Summicron-M 50mm f/2 is sharp at f/2 with excellent field uniformity and classic Leica rendering — micro-contrast and three-dimensional rendering that has made this lens type iconic. The Typ 11816 is a specific production number identifying this variant; Leica assigns type numbers to each finish and production revision.
Test rangefinder focus coupling accuracy. Inspect elements for any haze or coating condition. Confirm Leica M bayonet engagement. Check aperture blades. Verify the Typ number on the lens engraving matches the listing.