No ROM connection on the adapter. Diaphragm control of the lens is set manually. Automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. Fine finishing! Install, remove and operate lens smoothly! Compatible For Lens: Canon EOS EF Mount Lens. Compatible For Camera: Nikon 1 Camera (V1 V2 V3 J1 J2 J3 J4 S1) Package 1 x Lens Adapter.
eBay