Astronomy Specialist




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Includes a FULLY CERTIFIED Australian power supply!


Introducing iOptron’s new compact next-generation center-balanced equatorial mount - the CEM26! Like its predecessors, the CEM26 is designed with portability in mind. Weighing in at only 4.5kg, it can support up to a 12kg payload - an incredible 2.6 mount weight to payload ratio. The key to enable such a ratio is the center-balanced design which puts the weight of the payload at the center of gravity allowing for greater natural stability.

Building on the legacy of earlier CEM models, iOptron has added features for convenience and functionality. A positive lock gear engagement system (easy to use even when wearing gloves), built-in Wi-Fi enabling unparalleled connectivity and recordable permanent periodic error correction (PPEC) to repeat optimal PEC training sessions. The CEM26 delivers precise pointing and accurate tracking, and sets the new standard for compact equatorial mounts. The gears are spring-loaded for reduced backlash.

Other features include an adjustable counterweight bar to prevent obstruction with the tripod. Polar aligning is quick and accessible at all times since the polar scope is not blocked by the declination shaft.

The CEM26 is equipped with the latest advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 212,000+ objects. The Go2Nova Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting up the telescope and locating objects.

This CEM26 package has an AccuAlign optical polar scope installed for quick and easy polar alignment, as well as the 1.5" heavy duty stainless steel tripod.



  • Unique design, center-balanced equatorial mount (CEM) for maximum payload and minimum mount weight
  • Ideal for both visual observation and astrophotography
  • Low periodic error (< ± 10 arc seconds)
  • Payload of 12 kg (26 lbs) with the mount-only weight of 4.5 kg (10 lbs)
  • CNC machined and cast metal body
  • Spring loaded gear system
  • Large easy to use quick-lock gear clutches
  • Adjustable counterweight shaft for 0º latitude operation
  • Stepper motor with low power consumption
  • iOptron AccuAlign calibrated polar scope
  • Polar alignment routine for those who can’t see the Pole Star
  • Go2Nova 8409 controller with Advanced GOTONOVA® GOTO Technology
  • Integrated ST-4 autoguiding port
  • Built-in Wi-Fi
  • USB port for firmware upgrade and computer control
  • Standard 1.5 inch heavy-duty stainless steel tripod (5kg)
  • Die-cast metal tripod spreader with accessory tray


Center-Balanced Equatorial Mount
Max payload 12 kg (26 lbs) excluding counterweight
Mount weight
4.5 kg (10 lbs)
Payload/Mount weight ratio 2.60
Body material
All metal, Casting + CNC machined, powder-coated
Periodic error (PE) <±10 arcsec
PEC Yes, Permanent PEC
Worm period 600 sec
Right Ascension worm wheel Φ 88 mm, 144 teeth aluminium
Declination worm wheel Φ 88 mm, 144 teeth aluminium
Right Ascension axis shaft Φ 35 mm steel
Declination axis shaft Φ 35 mm steel
Right Ascension bearing Φ 55 mm ball bearing
Declination bearing Φ 55 mm ball bearing
Worm gears Φ 15.2 mm, Brass
Motor drive 1.8º stepper motor, 128 x microdivision
Resolution 0.17 arc seconds
Transmission Synchronous belt
Latitude adjustment range 0º ~ 60º
Azimuth adjustment range ± 6º
Polar Scope AccuAlign optical polar scope
Level indicator Level bubble
Hand Controller Go2Nova 8409 with ~212,000 objects database
Tracking Automatic
Slew speeds 1×,2×,8×,16×,64×,128×,256×,512×, MAX (6º/sec)
Power consumption 0.5A (tracking), 0.8A (GOTO)
Power requirement 12V DC, 5A, 5.5 x 2.1mm plug
Power-down memory Yes
Wi-Fi Yes, built-in
Communication port Yes (Wi-Fi and USB)
Autoguide port Yes (ST-4 compatible)
PC computer control Yes (ASCOM)
Counterweight shaft Φ 20 x 306 mm (M16), Stainless Steel
Counterweight 4.5 kg (10 lbs)
Tripod Standard 1.5 inch heavy-duty stainless steel tripod (5kg)
Dovetail saddle 3.8" Vixen-style, center adjustable
GPS Optional external 32-channel GPS
Autoguiding Optional external iGuider 1
Operation temperature -10ºC ~ 40ºC
Warranty Two year limited


  • iOptron CEM26 mount
  • Go2Nova 8409 Hand Controller
  • One 10lbs (4.5 kg) counterweight
  • Stainless steel counterweight shaft (200mm) and extension bar (120mm)
  • Internal Accualign illuminated polar scope
  • AC adapter (240V)
  • 2X coiled control Cable (6P6C RJ11 to RJ11, straight wired)
  • USB cable for mount
  • USB cable for optical polar scope
  • Standard 1.5 inch heavy-duty stainless steel tripod (5kg)
  • Quick Start Guide
Welcome Newcomer