Nikon ENG Mount Photo Adapter 0.45X microscope camera mount for T2 Tube. The Nikon catalog number is MDQ41041 and the old Nikon number is 83047 with a list price of $1,295.00.  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.