I wondered about that... like whether it might be just a mockup of some sort. But as far as I can tell it works fine. The blades move properly when making exposures, the aperture ring works, the lens focuses throughout the entire range, the auto/manual switch on the lens works and when I hold the lens up to a light I see at least 5 distinct and different colors in the reflections so it appears to have coatings as well. I'm pretty sure everything is in working order and that the lens is made just like a normal retail model.