Purchased new and used for about 2 years. Overall, it's in good condition. There are two spots of mold inside the lens, but they don't appear in photos (tested from wide open to stopped down). No box, but it comes with front and rear lens caps, a lens hood, and a pouch. -- Manufacturer's Suggested Retail Price: 198,000 yen (including tax) Lens Name: LEICA DG SUMMILUX 12mm / F1.4 ASPH. Lens Construction: 12 groups, 15 elements (2 aspherical lenses, 1 ED lens, 2 UED lenses) Mount: Micro Four Thirds standard Maximum Aperture: F1.4 Aperture Ring: Yes Aperture Blades: 9 blades, circular iris Minimum Aperture: F16 Minimum Focusing Distance: 0.2m Focal Length: 12mm (24mm equivalent on 35mm format) Filter Diameter: 62mm Maximum Magnification: 0.1x (0.2x equivalent on 35mm format) Angle of View: 84° Dimensions: Maximum diameter Φ70mm, total length approx. 70mm (from the tip to the lens mount reference surface) Weight: Approx. 335g (excluding front and rear caps and hood) Size: Micro Four Thirds mount Panasonic Model Name: LEICA DG SUMMILUX 12mm / F1.4 Focal Length: 11-12mm Maximum Aperture: ~1.4