High-quality 12mm wide-angle prime lens (24mm equivalent) for Micro Four Thirds, capable of shooting at f/2.0. I've had it for about six months, but I own many lenses with similar focal lengths, and I haven't used this one much. I'm selling it to invest in another lens. I've never taken it outside the house, only used it for astrophotography from home, and it appears to be scratch-free. *The rear cap has a few scratches. The original box, instruction manual, and an uncompleted warranty card are all included. - Model Name: M.ZUIKO DIGITAL ED 12mm f/2.0 - Brand: OLYMPUS - Focal Length: 12mm - Maximum Aperture: f/2.0 - Filter Diameter: 46mm - Included Accessories: Original box Thank you for looking.