Modified Nikon MF-3 Rewind Stop Film Back for the Nikon F2, F2S, F2SB, F2A, F2AS and F2T. This back attaches to the camera and used in conjunction with Nikon MD-1 or MD-2 Motor Drive. Normally, the MF-3 allows the motorized rewind to stop automatically as soon as the film leader becomes disengaged from the take-up spool, leaving a leader of film sticking out of the cassette. The modification was very professionally done as you can see.The back is in excellent shape with light signs of use. This item is in the category "Cameras & Photo\Film Photography\Film Backs & Holders". The seller is "(spud)" and is located in this country: US. This item can be shipped worldwide.