Made in: Japan
Dimensions: 146.5 × 115 × 71 mm
Weight: 480 g
The MD4 Motor Drive is an accessory designed to advance the film automatically through the Nikon F3 camera. The MD-4 offers either "Single" or "Continuous" operation. At "S," the film advances to the next frame as soon, as the picture is taken. At "C, "it will be advanced at 4 frames per second with penlight batteries or at 6 fps when using the optional MN-2 NiCd Battery Unit. In addition, the MD-4 offers automatic film rewind.