This is a highly sought-after Carl Zeiss Jena Tessar lens with a maximum aperture of f/2.8, perfect for portraits. It was manufactured in Germany and has an exterior made of aluminum. The lens is compatible with M42 mounts and has a focal length of 50mm. It is a rare edition, featuring a unique red T and silver design. This lens requires manual focus. Purchase this piece of photographic history for your collection today.