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iOptron CEM60-EC Center-Balanced Equatorial Mount

B&H # IO7201 MFR # 7201
iOptron CEM60-EC Center-Balanced Equatorial Mount


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Ship Time: 7-14 business days 
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Not eligible for free Expedited Shipping

Product Highlights

  • Motorized and Computer-Guided EQ Mount
  • Center-Mounted Design with 60 lb Payload
  • Periodic Error of Less Than 0.5 Arc Sec
  • Motor Accuracy: 0.06 Arcsecond
  • Nine Slew Speeds up to 3.75°/sec
  • Go2Nova 8407+ Hand Controller
  • Built-in 32-Channel GPS Receiver
  • AccuAligning Illuminated Polar Scope
  • 8" Losmandy/Vixen-Style Dual Saddle
  • Cut-Foam Padded Hard Carrying Case
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Price: $3,899.00

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The CEM60-EC Center-Balanced Equatorial Mount from iOptron features an innovative weight distribution design coupled with precise extended tracking capabilities to create a mount ideally suited for astrophotography or long-term observation. Its center-balanced design puts the optical tube weight directly over the mount's center of gravity which gives it better stability and a greater payload capacity over other EQ mounts. Additionally, the counterbalance shaft length is adjustable to keep it from interfering with whatever pier or tripod is being used.

The Right Ascension worm wheel is equipped with highly precise digital encoders which track the periodic error (PE) inherent in any drive and constantly adjusts the drive speed, in real time, to eliminate the errors, bringing the average PE to less than 0.5 arc seconds. This precision error correction allows for long-exposure astrophotography or other layering techniques that require shorter exposures with filter or other accessory changes. In addition to astroimaging, the extended tracking accuracy makes long term observation of specific objects or areas of interest easier.

For set-up and alignment, the CEM60-EC comes with the AccuAligning Illuminated Polar Scope. The mount is designed so that the declination shaft doesn't block the AccuAligning scope, which makes it accessible at all times for checking or correcting the polar alignment. A built-in 32-channel GPS receiver sends information such as location and local time to the Go2Nova controller for faster and easier set-up.

Included with the mount is the Go2Nova 8407+ controller. This handheld computer guider has a database of over 349,000 objects and is flash updateable from the iOptron website with firmware updates that increase its accuracy and adds celestial objects. The database includes the planets, galaxies, star clusters, quasars, and nebulae; as well as seven astronomical catalogs including Messier and NGC IC. It also has stars, comets, asteroids, constellations, and can store up to 60 user-defined objects to easily find and go-to their favorite objects. The mount has nine slew speeds up to 3.75°/second and can be manually controlled for quick observations.

A hard carrying case with die-cut custom-fit foam comes with the mount and is designed to hold and protect it during transport or storage.

  • Motorized and computer-guided equatorial mount with 60lb payload capacity
  • Innovative design puts the payload weight on the mount's center of gravity for greater stability and better counter-balancing
  • Non-contact magnetically loaded gear meshing system
  • Precise azimuth adjustment dials
  • 8" Losmandy/Vixen dual saddle accepts any compatible OTA up to 60 lb
  • AccuAligning polar scope with dark-field illumination for polar alignment
  • Declination shaft doesn't obstruct alignment scope for faster and easier Polar alignment
  • Gear switches on both R.A. and DEC axes for fast movement
  • Built-in 32-channel GPS receiver communicates information to the Go2Nova controller
Motors and Gears
  • Precision stepper motors with 0.06 arcsecond accuracy for precise GoTo capability and accurate tracking
  • 146mm, 288 tooth aluminum R.A. and Declination worm wheels
  • Screw/worm type latitude adjuster for precision adjustments
  • Vise-type latitude bearing locks system for solid positioning
  • Real-time Periodic Error Correction (RPEC) removes inaccuracies inherent in gears and allows for more accurate tracking, especially for long-exposure astrophotography
  • Highly precise encoders on the RA worm gear reduce the average periodic error to less than 0.5 arcsec
  • Nine slew speeds: 1x, 2x, 8x, 16x, 64x, 128x, 256x, 512x, Max (3.75°/sec)
  • Slew speed and direction controlled via Go2Nova controller
  • 110-240 VAC power adapter included
Instrument Panel and Input Panel
Instrument Panel:
  • Two 12 VDC power outlets for powering the CCD camera or electric focuser
  • Four USB 2.0 port with Type A connector for connecting to accessories
  • 6P6C port which can be used to bridge the guiding port or accessories with a 6P6C/6P4C plug
  • The USB hub is non-powered, and will draw power from a source, such a computer USB port
  • The ports on the instrument panel are connected to the input panel located next to the polar scope
Input Panel:
  • One 12 VDC power input, 5 A max
  • One USB 2.0 port with Type B connector
  • One 6P6C port


Counterweight and Shaft
  • Adjustable counterweight shaft reduces or eliminates interference with tripod or other equipment
  • 1.1x17.7" (28x450mm) stainless steel counterweight shaft
  • Included 21lb (9.5 kg) counterweight
Go2Nova 8407+ Hand Controller
  • 358,000 object database
  • User-friendly menu driven interface
  • 9-speed slew control with quiet mode
  • Database includes stars, constellations, and seven complete astronomical catalogs including Messier and NCG IC
  • Up to 60 user-defined objects to easily find your favorites
  • Enter specific R.A. and Declination coordinates of objects for immediate GoTo
  • 8 line, 21 character/line, red-light backlit LCD screen
  • One-star, multi-star, polar and SolarSys alignments
  • Programmable anti-backlash adjustment for smoother tracking
  • Updateable firmware through built-in serial port
  • Computer control with planetarium software
  • Integrated ST-4 autoguiding port
  • Built-in heater for larger operating temperature range
Mount Type Equatorial
Load Capacity 60 lb (27.2 kg), excluding counterweight
Mount 8" Losmandy/Vixen dual saddle
Motor Precision stepper motor
0.06 arcsec accuracy
Right Ascension Worm Wheel 146mm, 288 tooth aluminum
Declination Worm Wheel 146mm, 288 tooth aluminum
GPS Internal 32-channel GPS receiver
GO-TO Capability Go2Nova 8407+ hand controller
Altitude / Latitude Adjustment Altitude: ±8°
Latitude: 0 to 70°
Polar Axis Scope AccuAligning dark field illuminated
Includes Tripod/Pier No
Power Source 12 VDC, 2 A
100 to 240 VAC, adapter included
Consumption: 0.6 A (when tracking), 1.1 A (in GoTo mode)
Operational Temperature -4 to 113°F (-20 to 45°C)
Mount Size Base: 5.9" (15 cm)
Weight 27 lb (12.3 kg)
iOptron CEM60-EC Center-Balanced Equatorial Mount
  • AccuAligning Polar Scope
  • Go2Nova 8407 Hand Controller
  • 21 lb (9.5 kg) Counterweight
  • Stainless Steel Counterweight Shaft
  • Power Adapter
  • Hard Aluminum Carrying Case
  • Limited Two-Year Warranty
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