Thank you for viewing. This is a Leica Summarit M F2.4/35mm ASPH. Brand: Leica Summarit Lens Type: Single Focus Focal Length: Wide Angle Optical Zoom: 1.0x Focus: Manual Focus Mount: Leica M (Since there is no M mount, it is set to αE mount.) Compatible Sensor Size Maximum: Full Size I purchased it a while ago from a used site. The cap is genuine. There is no original box. No pets or smoking. There is no noticeable dust, debris, or cloudiness inside the lens. The lens barrel is also in beautiful condition with no scratches. (There may be small, unnoticed scratches) There is a slight scratch on the tip of the hood. Including the hood, I thought it was a lens with a very good design and that it could take beautiful photos with deep contrast. I would like to sell it because I purchased a new lens.