Nikon AF-S Micro Nikkor 105mm f/2.8G ED N lens for parts or repair with non-Nikon caps. Does not focus in either manual or auto focus. Does not let the camera adjust the aperture and the aperture actuation lever on the mount has no effect. Stuck in its small aperture. The glass looks clear with no fungus from what we can see. Shows minor handling wear but no visual impact damage.