Motor drive for SW500 and SW1000 telescopes with equatorial mounts. Will also suit any model on EQ3-2 equatorial mount. These dual axis motor drives, designed for EQ3-2 and EQ5 mounts, are essential in long-explosure astrophotography. They precisely control the telescope's tracking speed to compensate for the earth's rotation during long exposure of celestial objects. Available in 2x, 4x, and 8x speeds through the hand controller. These DC motor drives run on 4 "D" cell batteries (not included). Motors for both axes, clutches, cables, hand controller, and battery case are included.