This Soviet-made Industar I 61 lens is a great addition to any photographer's collection. With a maximum aperture of f/2.8 and a fixed focal length of 35mm, it is compatible with a variety of brands including Panasonic, Olympus, Sony, Zorky, Zeiss, Fujifilm, Fujinon, Nikon, and of course, Leica. The lens is a standard rangefinder type with manual focus and is compatible with a 52mm front filter. It was manufactured in the 1990s and has additional tech characteristics of RF. The lens is in excellent condition and will surely produce stunning images.