注意到这么一段:
When the scope is polar aligned the tracking rate is very good, easily holding objects in the 48 x eyepiece for more than an hour. The mount and motors are robust enough to support a 35-mm or small CCD camera for snapshots, but the drive is not designed for long-exposure astro imaging. After slewing eastward, especially at the faster speeds, the scope pauses as backlash works its way out of the gear train before it resumes celestial tracking. Sometimes it took 15 seconds or more for the scope to begin moving, and twice as much time could pass before the full tracking rate resumed. Nevertheless, it's easy to eliminate this lag by tapping the west push button for a second or two to speed up the backlash removal.