Nikon ENG Mount Photo Adapter 0.60X microscope camera mount for T2 Tube. The Nikon catalog number is: MDQ41061 and the old Nikon number is 83049 with a list price of $901.00. This item is new, however not in original packing.  Adapts a variety of camera's to a microscope photoport and includes a lens to make images parfocal with the binocular body.