Thank you for viewing. This is the second generation Leica Summicron 50mm f2.0. I purchased it used in January of this year and have mainly used it for snapshots. While there are some scratches on the exterior and some dust inside, it appears to be clear with no haze, and is very clean. It was overhauled in 2015, and the focus ring and aperture ring operate smoothly. The accessories are all shown in the photos. The size is set to Nikon F mount, but this product is a Leica M mount. Please feel free to comment if you have any questions.