Leica Summilux 1:1.4/50mm ASPH. Black Chrome Finish Rare limited edition 11688. New, unused, never mounted on any body. In box with all papers. Product Highlights Leica M-Mount Lens Aperture Range: f/1.4 to f/16 One Aspherical and One Floating Element Anomalous Partial Dispersion Glass High Refractive Index Glass Manual Focus Design Minimum Focusing Distance: 2.3' Design Reminiscent of 1959 Edition Includes Round Lens Hood and Metal Cap Limited Edition of 500