Rodenstock Imagon 120mm f4.5 soft-focus lens for the Hasselblad F system. Not the V system! This will not fit your 500C! But if you have a 1000F or a 1600F (or an adapter for F-type lenses) read on. Anyway, this is a soft-focus lens, so it's not going to be super sharp. Diaphragm discs not included (but you can make your own and clip them into the front).