This Helios 44 KMZ lens is a vintage portrait lens with a 58mm focal length and a maximum aperture of f/2.0. It is compatible with various brands such as Canon, Sony, and Nikon, among others. 

The lens is made of aluminum exterior material and comes with a lens hood as a bundled item. Additionally, this lens features manual focus, a fixed/prime focal length type, and a lens aperture of f/2.0. 

It is suitable for DSLR camera types and Sony E-mount cameras. The Helios 44 KMZ lens is a unique piece of equipment for any photography enthusiast.