This is a New MD 28mm f/2.8 lens from MINOLTA. It's a Minolta MC/MD/SR mount lens, but I was using it with a Sony FE mount camera with an adapter. A KENKO Black Mist Protector is also included as a bonus. It's a nearly unused and very clean filter. In addition, a K&F CONCEPT MD-NEX latest model lens mount adapter will be included for shipping. While there is some evidence of use, the focus ring, aperture ring, and mount are in relatively good condition. There is no lettering wear. The optics are clean with no mold or haze, and only a small amount of dust. There is no oil on the aperture blades. Please feel free to ask if you have any questions. Size...α E mount Focal length...19-70mm Open F value...2.1-2.8