The SOM Berthiot Paris Pan-Cinor 1:2.8 F=20 a60 mm lens is a high-quality manually focused lens with a maximum aperture of f/2.8. It features a focal length range of 20-60mm, making it versatile for a variety of photography needs. With its C-mount, this lens can be easily attached to different camera bodies for precise and controlled shots. The images produced by this lens are sure to be sharp and clear, thanks to its renowned brand and manual focus capabilities.