Features A new design, center-balanced equatorial mount (CEM) for maximum payload with natural stability Ideal for both visual observation and astrophotography Payload of 70 lbs (31.8 kg) with the mount weight of 30 lbs (13.6 kg) Easy to use and reliable gear clutches Precision altitude and azimuth adjustment. Precision stepper motor with 0.07 arcsec accuracy for precise GOTO and accurate tracking iPolarTM electronic polar scope Go2Nova® 8407+ V2 controller with Advanced GOTONOVA® GOTO Technology with built in heater CEM70: High precision tracking with low periodic error (PE)