Large format lens with Copal #1 shutters by Nikon. Tiny large format lens with coverage up to 8x10. Short "Telephoto" lens for 4x5, long normal for 5x7 and semi wide-angle for 8x10. Equivalent to 81mm, 60mm and 39mm respectively in 35mm format. Later production ones had a "SIC" coating that gives off lightly green reflection from the lens surface. These late models are more desired. Metal body in black finish.