Used Camera Lenses

Rodenstock Apo-Gerogon 1:9 f=300mm adaptor / filter
Rodenstock Apo-Gerogon 1:9 f=300mm adaptor / filter

I honestly have no idea what this is.  Title is what is listed on the item.  It clearly screws into a lens or camera.   926521

$ 49.90 Add to cart
Hokushin 50mm f1.4 Projector Lens
Hokushin 50mm f1.4 Projector Lens
Hokushin f1.4 50mm Projector Lens The glass appears clean and clear of dust or scratches. Tested, Works ok.
$ 29.90 Add to cart