Clad in a distinctive vintage style, the silver Voigtlander 40mm f/2.8 Heliar Aspherical is an ultracompact and sharp lens with cutting-edge optics and a timeless look designed from the ground up for thread mount cameras. Compatible with 35mm film and full-frame rangefinder cameras, this lens uses a traditional Heliar optical design and features a durable all-metal exterior, scoring high in both portability and performance. Smooth manual focus operation permits working with subjects as close as 2.3' away. Additionally, a 10-blade diaphragm is featured to contribute to a smooth bokeh quality.