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. Being an old item, there is some dirt and wear. Please refer to the following article for the lens's image quality: https://aremo-koremo.hatenablog.com/entry/2023/06/26/200000 The lens has noticeable haze on the edges, but it still takes normal pictures. If used well, it can produce nice ghosting and flare, so please consider it if you are an old lens enthusiast who likes such rendering.