Astronomy Specialist




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Includes a FULLY CERTIFIED Australian power supply!


The revolutionary CEM70G is a new standard bearer for equatorial mounts in the 70lb payload segment. Packed with advanced features, the CEM70G is the first of its type with an onboard optical guiding system increasing tracking accuracy while streamlining the components resulting in a more portable imaging setup.

Retaining the inherent properties of the center balance design, this relatively compact medium payload mount delivers what astronomers expect in an efficient and accurate portable mount. With precise GOTO pointing and accurate tracking (PE <±3.5 arcsec) the CEM70 is a solid performer for observers and imagers alike. The gears are spring-loaded for reduced backlash.

Includes innovative operational features such as the internal iPolar electronic polar scope, easy lock drive gear engagement (levers large enough to use with gloves), an advanced cable management system for the mount, and iGuider. On top of the built-in guiding system the CEM70G also comes standard with WiFi and USB 3.0.

This package includes the CEM70G mount head, iPolar electronic polar scope, iGuider onboard autoguiding camera, 9.5 kg counterweight, and hard case. Does not include a tripod or Tri-Pier.




  • A new design, center-balanced equatorial mount (CEM) for maximum payload with natural stability
  • Ideal for both visual observation and astrophotography
  • Payload of 31.8 kg (70 lbs) with the mount weight of 13.6 kg (30 lbs)
  • 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
  • iPolar electronic polar scope
  • Go2Nova® 8407+ V2 controller with Advanced GOTONOVA® GOTO Technology with built in heater
  • High precision tracking with low periodic error (PE)<±3.5 arcsec
  • Permanent periodic error correction (PPEC)
  • Onboard iGuider autoguiding system
  • 32-channel Global Positioning System (GPS)
  • Built-in WiFi for remote operation
  • USB3.0 connection
  • Integrated ST-4 autoguiding port
  • Advanced cable management system with more choices
  • Spring loaded 8" Vixen/Losmandy dual saddle
  • NEW iOptron subsidized TheSky Imaging Edition



Center-balanced Equatorial Mount (CEM)
Max payload 31.8 kg (70 lbs) excluding counterweight
Mount weight
13.6 kg (30 lbs)
Payload/Mount weight ratio 2.33
Body material
All metal, CNC machined, anodized
Periodic error (PE) <±3.5 arc seconds
PEC Yes, Permanent PEC
Worm period 348 sec
Right Ascension worm wheel Φ 151 mm, 248 teeth
Declination worm wheel Φ 151 mm, 248 teeth
Right Ascension axis shaft Φ 55 mm steel
Declination axis shaft Φ 55 mm steel
Right Ascension bearing Φ 80 mm
Declination bearing Φ 80 mm
Worm diameter Φ 21.2 mm, Brass
Motor drive Precision stepper motor, 128 x microdivision
Resolution 0.07 arc seconds
Latitude adjustment range 0º ~ 65º
Azimuth adjustment range ± 4º
Polar Scope Internal iPolar electronic polar scope
Level indicator Level bubble
Hand Controller Go2Nova 8407+, 8 line 21 character LCD
Meridian treatment Stop (0-10° pass), flip
Max slew speed 3.75°/sec (900x)
Power consumption 0.6A (tracking), 0.8A (GOTO)
Power requirement 12V DC, 5A, 5.5mm x 2.5mm plug
Guide scope/camera Built-in iGuider
Communication port USB, Wi-Fi
Autoguide port ST-4
Cable management 2 x DC 12V (3A), 3 x USB3.0, 1 x DC in/2 x DC out, iPort.
1 x USB input for mount, iGuider, iPolar and more
Counterweight shaft Φ 28 x 415 mm, Stainless Steel, 1.9 kg
Counterweight 9.5 kg (20 lbs)
Tripod Optional LiteRoc heavy-duty stainless steel tripod
Dovetail saddle 8" Losmandy D & Vixen
Operation temperature -10ºC ~ 40ºC
Warranty Two year limited

    • iOptron CEM70G mount
    • Go2Nova 8407+ Hand Controller
    • One 21lbs (9.5 kg) counterweight
    • Stainless steel counterweight shaft
    • iPolar electronic polar scope
    • AC adapter (240V) 5.5x 2.5mm DC plug
    • Hand controller Cable (6P6C RJ11 to RJ11, straight wired)
    • USB cable for mount
    • Wi-Fi external antenna
    • Aluminium carrying case
    Welcome Newcomer