The Jupiter 21A 200mm f/4 lens is a telephoto lens known for its excellent quality and sharpness, making it ideal for capturing distant subjects with intricate detail. With a maximum aperture of f/4.5, this manual focus lens is suitable for a range of photography styles, from landscapes to portraits. The M42 mount ensures compatibility with a variety of cameras, and its fixed focal length of 200mm provides consistent performance throughout its lifespan in the 1980s. Perfect for photographers looking for a reliable and high-quality lens for their photography needs. Please study the photos before bidding any questions please ask