The Voigtlander Super Nokton 29mm f/0.8 Aspherical Lens is slightly faster than the KIPON Ibelux 40mm f/0.85 Lens for Micro Four Thirds.

Micro Four Thirds System
58mm (35mm Equivalent)
Aperture Range: f/0.8 to f/16
Two Aspherical Elements
Stepless, De-Clicked Aperture Ring
Manual Focus Design
12-Blade Diaphragm