iOptron CEM60 Mount

Manufactured by: iOptron
Model: 7201


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The All NEW iOptron® CEM60-EC
With high precision encoder.
An extraordinary innovation in mount design...Now with a new payload!
This past year we introduced a new design concept -- the center-balanced equatorial mount (or CEM) called the ZEQ25. Now, we're proud to introduce the CEM60-EC with high precision encoder and sub-arcsecond PE! -- with an increased payload of 60 lbs! The CEM60-EC puts the weight of the payload at the center of gravity allowing for greater natural stability. This makes the mount extremely light compared to its payload--a nice benefit when setting up at a remote site. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft.

The CEM60-EC is equipped with the most advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 300,000 objects. The other features include an adjustable counterweight bar, magnetically loaded gear system, gear switches on both R.A. and DEC axes, screw/worm type latitude adjuster and built-in or customized cable management system. The CEM60-EC - a new category (and payload capacity) of mounts for viewing and astrophotography.


  • A new design, center-balanced equatorial mount (CEM) for maximum payload and minimum mount weight
  • Specialized astrophotography mount ideal for visual and Astro-photographers

  • Patent pending non-contact magnetically loaded gear system

  • Payload of 60 lbs (27.2 kg) with the mount-only weight of 27 lbs (12.3 kg)

  • Gear switches on both R.A. and DEC axes for easy balancing when disengaged

  • Adjustable counterweight shaft for 0º latitude operation

  • Screw/worm type latitude adjuster for precision adjustments

  • Milling machine tooling vise type latitude bearing and locks system for rock solid positioning

  • User side azimuth fine adjusters for easy azimuth adjustment

  • Precision stepper motor with 0.06 arcsec accuracy for precise GOTO and accurate tracking

  • iOptron AccuAligningTM calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for fast and accurate polar alignment

  • Polar alignment routine for those who can't see the Pole Star

  • Go2Nova® 8407+ controller with Advanced GOTONOVA® GOTO Technology with built in heater

  • Realtime periodic error correction (RPEC)

  • Integrated ST-4 autoguiding port

  • Built-in 32-channel Global Positioning System (GPS)

  • Built-in or customized cable management system

  • Spring loaded Vixen/Losmandy dual saddle

  • 150mm base size to match optional 2 inch heavy-duty stainless steel tripod (8kg) or 42/48 inch pier

  • Optional 42 inch pier (#8033) or 48 inch pier (#8030)
  • Optional 2-inch tripod available (#8021ACC)
  • Optional Mini Pier (#8032) for extending height also available

  • Optional PowerWeightTM rechargeable battery pack 

Technical Specifications:


Center-balanced Equatorial Mount (CEM)


60 lb (27.2kg), exclude counterweight

Mount weight

27 lb (12.3kg)

Payload/Mount weight



All metal (except GPS cover)

Latitude adjustment range

0°~ 70°

Azimuth adjustment range

± 8°

Right Ascension worm wheel

F146mm, 288 tooth aluminum

Declination worm wheel

F146mm, 288 teeth aluminum


Real time PEC


 <0.5 arcsec RMS

Counterweight shaft

F28x 450 mm Stainless steel


21 lb (9.5 kg)

Mount base size

F150 mm

Motor drive

Stepper motor


0.06 arc seconds

Slew speed


Power consumption

0.6A(Tracking),  1.1A(GOTO)

Power requirement

12V DC 2A

AC adapter

100V ~ 240V (included)

Polar Scope

AccuAligningTM dark field illuminated, 2 arc min

Level indicator

Level bubble

Dovetail saddle

8” Losmandy/Vixen dual saddle

Hand Controller

Go2Nova® 8407=,359,000 objects database, star recognition

Meridian treatment

Stop (0-15° pass) and auto flip


Internal 32-channel GPS

Autoguide port

ST-4 compatible

Communication port

Serial Prot

PC computer control


Cable management

4X USB, 2X DC12V (MAX 5A), 6P6C

Operation temperature

-20°C ~ +45°C

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