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iOptron CEM40 Center Balance Equatorial Mount Head - No Tripod - 7420

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SKU: IOP-7420

iOptron CEM40 Center Balance Equatorial Mount Head - No Tripod, iPolar or Counterweight

The iOptron CEM40 mount is the next generation of center-balanced equatorial mounts. This mount is incredibly attractive. Its beauty is found in more than its appearance though. The functionality of the mount is superb! Even though the mount weighs only 15.8 pounds, it can support a payload of up to 40 pounds!

The CEM40 mount uses iOptron's patent-pending Universal Self-Centering Saddle (USCS). This saddle accommodates Losmandy and Vixen-style dovetail plates. The CEM40 also uses iOptron's ultra-quiet, low-power consumption stepper motor drive system, aiding the mount in providing precise tracking.

Using the Go2Nova ® 8407 hand controller to navigate the night sky, this mount is happy to adventure through the sky with any observer. This incredible technology helps observers find celestial objects with the aid of the mount's 359,000+ object database! For those looking for a telescope that has the capability of tracking and finding beautiful night sky objects, this mount is a must-have tool.

Please Note: While the iPolar electronic polar finder is a feature of the CEM40 and CEM40EC models with tripod, it is not included in this mount only package, and neither is a tripod or counterweight.


  • Mount Type: Computerized Equatorial Center Balanced
  • Payload: 18 kg (40 lbs)
  • Mount Weight: 7.2 kg (15.8 lbs)
  • Structure Material: All metal, CNC machined
  • Exterior Finish: Anodized red/black
  • Latitude Adjustment Range: 0~60°
  • Azimuth Adjustment Range: ±6°
  • Tracking Accuracy (PE): < ±7 arcsec
  • Period: 400 sec
  • Worm diameter: 17 mm
  • Right Ascension Worm Wheel: 216 teeth, Ø 110 mm, zero backlash
  • Declination Worm Wheel: 216 teeth, Ø 110 mm, zero backlash
  • Right Ascension Axle: Ø 45 mm, steel
  • Declination Axle: Ø 45 mm, steel
  • Right Ascension Bearings: Ø 68 mm
  • Declination Bearings: Ø 68 mm
  • Mounting Base Diameter: Ø 125mm
  • Motor: precision stepper motor, 1.8°/128 micor-step
  • Motor Resolution: 0.08 arcsec (200 PPS)
  • Hand Controller: Go2Nova 8407+; 8 line 21 character LCD
  • Star Database: 359,000+, star identification
  • Meridian Treatment: Stop (0-10° pass), flip
  • Dovetail saddle: iOptron Universal saddle, 5"
  • AutoGuiding Port: Integrated ST-4
  • Communication Port: USB