Bright 50mm f/2 prime lens, compatible with Leica L39 mount. - Model Name: SUPER ROKKOR 50mm f/2 - Aperture: f/2 - f/16 - Focal Length: 50mm - Lens Mount: L39 - Color: Silver Thank you for viewing. As it is an old item, there are some dirt and scratches. Please refer to the following article for the lens's depiction: https://aremo-koremo.hatenablog.com/entry/2023/06/26/200000 There is some clouding on the edge of the lens, but it still takes pictures normally. If used well, it can produce nice ghosting and flare, so please consider it if you are an old lens enthusiast who likes such depictions.