Voigtlander 21mm f/1.8 Ultron Manual Focus Aspherical Lens for M Mount Cameras, with Built-in Lens Hood Fast Sharp 21mm f/1.8 Ultron Lens Close FocusinFast Sharp 21mm f/1.8 Ultron Lensg to .7 meters Easily Adaptable to All Sony NEX, M43, and Fuji X cameras with proper adapter