This is the LUMIX G 14mm F2.5 ASPH., released in 2010. It is a compact and lightweight pancake lens that complies with the Micro Four Thirds system standard, and it becomes a 28mm wide-angle lens when converted to 35mm format. I purchased it for my GX1 and used it for snapshots and travel, but it has been stored away recently. I am now selling it due to equipment consolidation. The exterior has no noticeable scratches and shows little signs of use. The lens has no mold or fogging, but there is some dust inside that does not affect image quality. Autofocus and aperture operation are good. Photos 11 and 12 are samples taken with this lens. Accessories include lens caps (front and rear). Below are excerpts of the specifications. Compatible mount: Micro Four Thirds mount system Focal length: 14 mm Minimum focusing distance: 0.18m Maximum magnification: 0.1x Maximum aperture: F2.5 Type: Pancake Filter diameter: 46 mm Maximum diameter x length: 55.5x20.5 mm Weight: 55 g Size... Micro Four Thirds mount