The Voigtlander Nokton 50mm f/1.2 ASPH E-Mount lens is an exceptional Leica M-Mount lens with a fast f/1.2 aperture range and two aspherical elements. With a manual focusing design, it offers a minimum focusing distance of 2.3', and a 52mm filter thread. The 12-blade diaphragm ensures a smooth, pleasing bokeh. This lens is perfect for portrait, landscape, and low-light photography. Product Features: Leica M-Mount Lens Aperture Range: f/1.2 to f/22 Two Aspherical Elements One Partial Dispersion Element Manual Focus Design Minimum Focusing Distance: 2.3' Filter Thread: 52mm 12-Blade Diaphragm