This Isco-Göttingen Anamorphic 2X model KA298 and Magna-Com 65 MC lenses come on some type of projector mount. We do not know what projector the mount is for. The Anamorphic 2X Model KA298 has a stiff focus, and its focus scale ring is loose. It is also missing a couple of screws. It has cleaning marks on its rear element. Both are clean, clear, and free of any fungus, haze, or separation. Please see photos.