The Hanimex HMC Zoom Lens 28-70mm F3.5-4.5 is a versatile lens designed for practical film cameras. With a maximum aperture of f/3.5, this zoom lens allows for smooth and precise focusing, making it ideal for capturing a range of subjects with clarity and accuracy. The lens is suitable for Practica mount cameras, offering a focal length range of 28-70mm, perfect capturing landscapes, portraits, and a variety of other scenes with ease. Overall, this lens provides photographers with the flexibility and quality needed for practical film photography. not tested