The Cosina COSINON-S 50mm f/1.8 lens is a standard lens with a maximum aperture of f/1.8, ideal for capturing clear and sharp images. It features manual focus, perfect for photographers looking to have full control over their images. The lens is designed for use with cameras that have a COSINON-S mount, ensuring compatibility and high-quality performance. This model, Cosina Cosinon-S, offers a focal length of 50mm, making it versatile for a range of photography styles and subjects.