Voigtlander Nokton 25mm f/0.95 Type II Manual Focus Lens for Micro 4/3 Mount Micro Four Thirds System 50mm (35mm Equivalent), Aperture Range: f/0.95 to f/16 Ultra-High Refractive Glass, Metal Lens Barrel Stepless, De-Clicked Aperture Ring, 10-Blade Diaphragm Manual Focus Design