This dual axis motor drive, with drive corrector capabilities, is
designed for Celestron's CG-4 mounts for tracking in RA and allows
movement in DEC. It precisely controls the telescope's tracking speed
during long, timed exposures of celestial objects, producing the best
possible image sharpness. Precision drive correctors are a must for
those with a serious interest in astrophotography or CCD imaging. Four
speeds are available -- 1x (sidereal), 2x for guiding, 4x, and 8x for
centering.
This precision, state-of-the-art DC motor drive
operates from 4 D-cell batteries (user supplied). The hand controller
module is very compact and fits easily in the palm of your hand. Motors
for both axes are included, along with brackets, clutch and hardware.