Jupiter-37A. A legend of the last century, a popular lens - Jupiter 37A 3.5/135. It is called a small telephoto camera or a large portrait camera, which is true. Jupiter 37-A takes first place in my voting for the best Soviet portrait lens in the 85-135mm range.You can attach this lens to cameras with M42 thread or H mount.Mechanically the lens works well ________________________________________________________________________________________________________________ There is a transparent strip on the lens in the front part of the lens; it does not affect the focus at all.