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Price: $2,268.00

Availability: Back Order
Product Code: C401A1
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Description Technical Specs Support Documents
The iOptron® CEM40 mount is the next generation of center-balanced equatorial mounts. This mount is incredibly eye-pleasing, and its beauty is found in more than its appearance. The functionality of the mount is superb. Weighing in at only 17.4lbs., this mount can support a payload of up to 40lbs.! That's incredible!

Innovative iOptron Technology
Make way for an innovative mount! This mount has an integrated electronic polar finder scope known as the iPolar. This tool ensures the accurate alignment of a telescope, even when the pole star is obscured. There are large levers on the quick-lock drive engagement system; these large levers make it easy to snap the gears into place.

This iOptron CEM40G mount has a dual saddle that accommodates Losmandy and Vixen-style dovetail plates. The CEM40 also uses iOptron's ultra-quiet, low-power consumption stepper motor drive system, aiding the mount in providing precise tracking.

Computerized Mount Features
The iOptron CEM40 mount uses the Go2Nova® 8407 hand controller to navigate the night sky. This incredible technology helps observers find celestial objects with the aid of the mount's 212,000+ object database! For those looking for a telescope that has the capability of tracking and finding beautiful night sky objects, this mount is a must have tool.

With the included tripod, 11lbs counterweight, and the mount's computerized technology, observers are just an OTA away from a spectacular viewing experience!

(This mount uses #8027 counterweight)
  • Unique design, Center-Balanced equatorial mount (CEM) for maximum payload and minimum mount weight
  • Idea for both visual observation and astrophotography
  • Maximum payload of 40 lbs (18 kg) with the mount weight of only 17.4 lbs (7.9 kg)
  • All metal, CNC machined with red/black anodized
  • Easy to use quick-lock gear clutches
  • Integrated iPolarTM electronic polar finder
  • Low periodic error (< ± 7 arc seconds)
  • Permanent periodic error correction (PPEC)
  • Precision stepper motor for precise GOTO and accurate tracking
  • Go2Nova® 8407+ controller with Advanced GOTONOVA® GOTO Technology with built-in heater
  • Integrated ST-4 autoguiding port
  • 32-channel Global Positioning System (GPS)
  • USB communication port
  • Cable management system
  • 6" Losmandy D & Vixen dual dovetail saddle
  • Standard 1.5 inch heavy-duty stainless steel tripod (5kg)
  • Optional WiFi for mount control via SmartPhone/Tablet/Computer
  • iOptron subsidized TheSky Imaging Edition
Average Rating: Average Rating: 1 of 5 1 of 5 Total Reviews: 1 Write a review »

2.5kg Counterweight
Price: $55.00
2.5kg Counterweight
5kg Counterweight
Price: $75.00
5kg Counterweight
iStarFi Wi-Fi Adapter for CEM40/GEM45
Price: $135.00
iStarFi Wi-Fi Adapter for CEM40/GEM45
TheSky Imaging Edition
iOptron NEW CEM/GEM mount owner $482.00
TheSky Imaging Edition

  0 of 1 people found the following review helpful:
1 of 5 Unbelievably disappointing October 31, 2021
Reviewer: CS from Lakeside, MT United States  
This is, hands down, the most worthless mount I've ever purchased. I guess I got spoiled by software  that isn't a pile of hot garbage, but I literally spent 3 hours trying to run this tonight and got NOWWHERE. It runs on average 10 degrees off, and iterative adjustment does literally NOTHING to get it better than that. It points in generally the "right" part of the sky, but only barely. I honestly wish I had never seen this mount, nor thought of buying iOptron.

The ipolar - piece of S***. You point it exactly north to start and then watch it absolutely SPAZ OUT seeing stars and throwing red arrows every other direction, with text that changes so fast you can't read it.
Worst purchase I've made in the last 10 years. The software does NOT match what I find on youtube. I wish I could grab a previous version or something. So, so, so, so bad in every respect except maybe the nice wedge system for locking and unlocking the axis

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