The MC Kenlock AUTO Zoom 85-210mm f/4.5 lens is a versatile zoom lens designed for manual focus. With a maximum aperture of f/4.5, this lens is ideal for capturing sharp images and smooth transitions. The M42 mount makes it compatible with a range of cameras, while the 85-210mm focal length range allows for versatile shooting from portraits to landscapes. This lens from Kenlock offers quality and flexibility for photographers looking to expand their creative capabilities.