Cleaned motor drive in [Excellent+], tested and fully working condition.
Motor Drive MD-4 for the Nikon F3.
It is capable of Single-Frame (S) and Continuous (C) operation. When running in „C“ mode the F3/MD-4 can fire a 36 exposure roll of film in 9 seconds (4 frames per second) with AA alkaline batteries. Use of the MN-2 NiCd Battery unit boosts the frame rate to 5.5 frames per second, or 6 frames per second with the mirror locked up.
Please take a close look at the pictures.