Pixco Pro Focus to Infinity Lens Adapter for Nikon AI F Mount Lens to Canon FD Mount Adapter AE-1 AE1 Program A-1 F-1 T50 T70 T90 Ship From China ,the shipping time is about 8~15 working days to USA. Completely manual control, manual focus and manual exposure Focus to Infinity Equipped with lock & stop pin There is no ROM connection on the ring so diaphragm control of the lens is set manually.