Voigtlander Nokton 25mm F0.95 is a Manual Focus (MF) Wideangle Prime lens with FourThirds max sensor coverage. When mounted on a FourThirds sensor camera, it will give you an FF equivalent focal range of 50mm. Providing a max aperture of f0.95 at 25mm, this lens is very fast.
Voigtlander Nokton 25mm F0.95 is not a weather sealed lens, so you have to be extra careful against rain and dust. Voigtlander Nokton 25mm F0.95 was replaced with Voigtlander Nokton 25mm F0.95 Type II Micro Four Thirds. Follow the link to read our comparison of these cameras:
Compare Voigtlander Nokton 25mm F0.95 Micro Four Thirds vs Voigtlander Nokton 25mm F0.95 Type II Micro Four Thirds