Leica's classic hood, the early version of IROOA. It's slightly longer than later models. The later model's code is 12571J. It's designed to fit lenses with a diameter of E39 (39mm thread). It boasts a simple and stylish design. Unlike the previous model ITDOO, which had a single hook, the IROOA features a double hook. When used with a 50mm lens, you can flip the hood upside down for storage. While labeled for Summaron 3.5cm and Summicron 5cm lenses, it also fits lenses like the Summicron 35mm f2 with 8 elements or the Elmar 50mm f2.8 *Shipping to Japan only. For overseas customer, please contact us before order. There are very minor paint chips on the front end and slight wear on the chrome-plated parts, but overall, it's in quite good condition for an IROOA. It has been tested and confirmed to fit on the lens. It comes with the genuine hood cap.