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