iOptron CEM60-EC Center-Balanced Equatorial Mount

iOptron CEM60-EC Center-Balanced Equatorial Mount

iOptron CEM60-EC Center-Balanced Equatorial Mount

B&H # IO7201 MFR # 7201

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Product Highlights

  • Motorized and Computer-Guided EQ Mount
  • Center-Mounted Design with 60 lb Payload
  • Periodic Error of Less Than 0.5 Arcsec
  • 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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iOptron 7201 overview

  • 1Description

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 assembly (OTA) 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 that 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 arcseconds. 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 setup 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 setup.

Included with the mount is the Go2Nova 8407+ controller. This handheld computer guider has a database of over 349,000 objects and is flash updatable from the iOptron website with firmware updates that increase its accuracy and add 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, and constellations and can store up to 60 user-defined objects to easily find and go to 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 60 lb 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 right ascension (RA) and declination (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 RA and dec 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 ports with Type A connector for connecting to accessories
  • 6P6C port that 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 as 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 21 lb (9.5kg) 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 RA and dec 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
  • Updatable firmware through built-in serial port
  • Computer control with planetarium software
  • Integrated ST-4 autoguiding port
  • Built-in heater for larger operating temperature range
In the Box
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 2-Year Warranty
  • Table of Contents
    • 1Description

    iOptron 7201 specs

    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
    GoTo 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)
    Packaging Info
    Package Weight 70.5 lb
    Box Dimensions (LxWxH) 21.3 x 18.8 x 10.3"

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