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WD-20 is a High-Load harmonic gear mount based on Servo Direct Drive. It provide standard load capacity up to 22kg without using a counterweight. Most heavy equipments like a 150 APO or C11 can be easily handled by it with ideal guiding performance. New designed main body with high power density servo motor, significantly boosting load capacity while keeping its weight at only 5.4kg. Both axises have a home sensor, which makes astrophotography more convenient for remote control/observatory.
