iOptron CEM40 Computerized German Equatorial Telescope Mount Head Only

  • 40 lbs Payload
  • Weighs only 15.8 lbs!
  • Internal Cable management systems allows to connect an autoguider, and camera via USB, 12v Power, and ST-4 ports on the saddle
  • Tripod and counterweights not included
  • Sale
  • Regular price $1,648.00

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iOptron CEM40 Computerized German Equatorial Telescope Mount Head Only

Introducing the CEM40, the next-generation in center-balance equatorial mounts.

With a red anodized CNC body, it looks sharp however its beauty is more than skin deep. The head weighs in at only 15.8 lbs. yet can support a payload of up to 40 lbs.  Large levers on its quick-lock drive engagement system make it easy to snap its gears into place even when wearing gloves. There's little chance of your cables getting snagged with the CEM40's internal cable management system. The CEM40 and CEM40EC incorporate our new, patent- pending Universal Self-Centering Saddle (USCS) it accommodates Losmandy and Vixen style dovetail plates. The CEM40 utilize iOptron'ss ultra-quiet low power consumption stepper motor drive systems. Other features such as onboard GPS, 359,000+ object library with star identification make these extremely portable and capable mounts sure winners.



Database359000 Objects
DEC Worm Wheel110mm Diameter 216 Teeth
Drive Typeprecision stepper motor
Free ShippingYes
Head DesignEquatorial
Instrument Capacity40 lb
Latitude Range0 to 60 Degrees
Mount Head Weight15.8lb
RA Worm Wheel110mm Diameter 216 Teeth
Slew Speed4.5°/sec (1080x)
Telescope ConnectionDual Vixen & Losmandy
Tracking Accuracy±7 Arcseconds
Tripod Weight15 lb


  • Mount Head
  • Counterweight Shaft
  • Go2Nova 8407 Hand controller
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5.0 Based on 1 Reviews
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United States United States
A replacement for my EQ6

Purchased my EQ6 in 1994. A great mount. However, in 2020 the CEM 40 is just as good, but lighter. Also, own a CEM 60. Have enjoyed astronomy for many years. Do not have an observatory. Set up every night that I observe. Two telescopes. 200mm f5 and a 250mm f5. Collimating is done every evening on the mount. Cheers, Carl