Leica Summicron-M 50mm F2 3rd Lens made in Germany This is a Summicron 50mm, 3rd generation. I purchased it from Map Camera two years ago and have used it with care. The exterior shows some scratches and signs of use. The lens has some minor dust and haze, but it was within a range that didn't affect the photos. At the end of last year, the aperture ring started to malfunction, so I had it repaired at a specialist shop at the beginning of this year. They also inspected it thoroughly at that time. I believe there are no issues with its operation. The image quality is very refined, and I was impressed, as expected of a Leica lens. It has a focus knob, making focusing easy. A non-genuine lens cap is included. Although it's not in pristine condition, I believe it can still be used. I'm selling it because I've purchased a new lens and have had fewer opportunities to use this one. I hope someone looking for a practical lens will find it useful. Thank you. (The mount is Leica M. I've selected Sigma SA because there is no Leica M option.)