(I accidentally closed this post, so I'm re-posting it.) Glass is clean and clear and the opening and closing of the aperture blades is snappy, with no visible oil. Cosmetics are at least an 8.5, probably better. I’m selling this lens because I don't care for the focal length, which equals 76mm on full-frame. But it is a lovely, tiny, and light lens. Comes with both caps. Requires an adapter (not included) for use on Olympus or Panasonic M4/3 cameras. It can also be used on the Sony NEX bodies with an appropriate adapter, where it equals a 57mm focal length. $225 Price includes PayPal fees and USPS shipping to CONUS. My PayPal ID is email@example.com. Contact me by e-mail at firstname.lastname@example.org (preferred) or PM.