The Voigtlander Nokton 25mm f/0.95 Type II Lens for Micro Four Thirds is a bright, fast normal-length lens that provides a 35mm-equivalent focal length of 50mm when used on Micro Four Thirds Cameras. This manual focus, manual exposure prime lenses utilizes a Selective Aperture Control System, which permits switching between a stepless, de-clicked aperture selection method or a traditional aperture control method with click stops. When set to the stepless setting, silent and smooth exposure adjustments can be made that are especially beneficial when recording video.