Super-Takumar 133mm f/3.5 M42 screw mount, not K-mount. Comes with a metal hood, a great deal! While there may be some light haze or dust typical of older lenses, it's in beautiful condition. Please refrain from purchasing if you are concerned about minor details. The exterior has no noticeable scratches, and the focus is smooth. Please consider this listing with an understanding of old lenses and the nature of flea market apps.