This ELGEET (Rochester, N.Y., U.S.A.) 13mm f:1.5 wide angle lens T5432 is in great condition. C mount threads. The focus adjusts smoothly from 1 foot to infinity. It has a depth of field scale. The aperture range is f:1.5-16, works fine, no oil on the blades. The glass is clean, unscratched, no haze or fungus. A few dust specks inside. Front and rear caps included.