iOptron CEM70 Center Balanced Mount Head Center Balanced mount with innovative features Ideal for both visual observation and astrophotography Maximum payload of 70 lb (31.8 kg) with the mount weight of 30 lb (13.6 kg) Easy to use quick-lock gear clutches Integrated iPolar electronic polar finder Periodic encoder error less than ±3.5 arcsecond (PE measured with encoder on the bench) Permanent periodic error correction (PPEC) Precision stepper motor for precise GOTO and accurate tracking Go2Nova 8407+ controller with Advanced GOTONOVA GOTO Technology and built-in heater Integrated ST-4 autoguiding port 32-channel Global Positioning System (GPS) 3X USB2.0 Powered Cable management system 8" Losmandy D and Vixen style universal saddle All metal, CNC machined with black anodized finish The iOptron CEM70 Center Balanced Mount Head proves that iOptron has done it again! Using ideas and engineering applied to a time tested design, the iOptron CEM70 brings you the next generation Center Balanced Equatorial mount. An elegant CNC body is the first indicator the CEM70 is a top quality mount; you will find this is true in both its form and its function. Utilizing clever engineering, they were able to provide the iOptron CEM70 Center Balanced Mount Head an incredible 2.33 X payload-to-mount weight ratio. This heavy-duty mount can precisely GO-TO an object and track it with up to 70 lb of gear on-board, but while the Head weighs only 30 lb. An amazing feat. This model also includes the iOptron iPolar electronic Polar Scope. The iOptron CEM70 (C70A) Center Balanced Mount delivers a Periodic Error of less than ±3.5 arcsecond, (based upon measurements the manufacturer has made with the encoder, on the bench, with a 348 second period.) This will give you the precision tracking you need for the best possible astro-imaging results, along with a great payload capacity and easy operation. The superb mechanical construction and choice of premium drive components for this mount provides the tracking and slewing performance you expect from iOptron. Retaining the inherent properties of the center balance design, this relatively compact medium payload mount delivers what astronomers expect in an efficient accurate portable mount. With precise GOTO pointing and accurate tracking (PE