Second hand Nikon E2 Semi auto Extension tube for sale. Used The E2 Semi auto extension ring adds an extension of 14mm to the lens and has a built-in plunger that is pressed to open the lens diaphragm to full aperture for bright viewing and focussing. Releasing the plunger stops down the lens to taking aperture
Good condition, just a few light wear marks. Great for age. The photograph above is the actual Nikon E2 Semi auto I am selling.