Used Contax Carlzeiss Planar T* 85mm F1.4 mmj

This is a used item. Contax Carlzeiss Planar T* 85mm F1.4 mmj contax carlzeiss Planar T* 85mm F1.4 mmj. The exterior is very beautiful, but the optics are cloudy when exposed to strong light. Black dust with some black dots?There is something like this on the rear ball, You can see it visually. At a practical level, we have confirmed that contrast decreases due to clouds.

There are no rear or front caps. The mount will be Y/C mount.