SKU: 35058837860

iOptron CEM40EC EQ Mount GoTo with High Precision RA Encoder & LiteRoc Tripod

Sale price$1799.55 Regular price$1999.50
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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

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Description

iOptron CEM40EC EQ Mount GoTo with High Precision RA Encoder & LiteRoc TripodDescription The mount head weighs only 8. 2 kg, yet can support a payload of up to 18 kg. This extremely good payload to weight ratio of 2. 5 makes the CEM40 versatile. You can easily carry it to your favourite place under a dark sky or at your backyard observatory. But there are more advantages: An integrated electronic polar finder scope (iPolar) ensures accurate alignment even at times when the pole star is obscured. Large levers on its quick lock

Description

The mount head weighs only 8.2 kg, yet can support a payload of up to 18 kg. This extremely good payload to weight ratio of 2.5 makes the CEM40 versatile. You can easily carry it to your favourite place under a dark sky or at your backyard observatory.

But there are more advantages:

  • An integrated electronic polar finder scope (iPolar) ensures accurate alignment even at times when the pole star is obscured.
  • 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 mount comes with the new Universal Self-Centering Saddle for Losmandy and Vixen style dovetails.
  • The CNC body looks sharp but is really robust.

The GoTo-Technology features a Go2Nova 8407+ controller with integrated heater for its large display, a 212,000 object library, integrated 32-channel-GPS and ST-4 auto guiding port.

Another great feature besides the centre-balance is the ultra-quiet low power consumption stepper motor drive systems. Both models of the CEM40 are precise trackers, the CEM40-EC version delivering <0.25 arcsecond accuracy with its high-resolution encoder and its real time periodic error correction (RPEC).

The CEM40 is a extremely versatile and advanced mount.

With or without encoder: The mount is available in two versions, both of which track your optics precisely in the night sky. The variant with high-resolution encoders (EC) on both axes achieves an accuracy of less than 0.25 angular seconds and corrects the periodic screw error in real time! As a result, guiding is no longer necessary in astrophotography.

This mount already comes with iOptron's newly developed LiteRoc tripod.

The mount comes with the LiteRoc 1.75" tripod delivers rock solid stability in a lighter, more compact package. It also has improved leg cuffs and sockets for more rigidity and redesigned leg lock levers.

Specifications

Capacity

Max. additional load capacity (kg)  18
Counterweight(s) (piece)  1 (4,5kg)
Interfaces  USB
Language English
Polar elevation setting (°) 0 - 60
Mounting saddle Losmandy & Vixen
DEC ball bearings diameter (mm) 68
RA ball bearings diameter (mm) 68
DEC worm gear diameter (mm) 110
RA worm gear diameter (mm)  110
Worm gear teeth (DEC) (piece) 216
Worm gear teeth (RA) (piece) 216
DEC worm shaft diameter (mm) 17
RA worm shaft diameter (mm) 17
RA axis diameter (mm)  45
DEC axis diameter (mm) 45
Diameter of counterweight bar (mm) 28
Long counterweight rod (mm) 410
Weight mount head only (kg) 8,2
Slow-motion azimuth adjustment +/- 6
Input voltage 12
Amperage (A) 5
Stepper motors 1.8°/128 micro-steps
Cable-guide external
Encoder yes

Special features

GoTo system  yes
Handcontroller yes
Level yes

Equipment

Tripod <p> Tripod
Carrying case yes
Pole finder yes

Tripod

Tripod leg diameter (mm)         45
Tripod material Steel

General

Series CEM 
Type Mount
Type of build Equatorial

GoTo control

Precision < 0,25
GPS yes
WIFI optional
PEC correction yes
Polar Alignment iPolar
GoTo Language English
Software Go2Nova 8407
Autoguiding yes
Interfaces Autoguider, USB
Database 212.000
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35058837860

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4.8 ★★★★★
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Product Reviews
K
Verified Purchase
Kali S.
Whiting, US
★★★★★ 5
Perfect
Size: 16 Inch
Love the sturdieness and the almost stram punk look to these. Great quality and easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2025
K
Verified Purchase
Kerry Ninneman
Houston, US
★★★★★ 4
Good Look and Adjustable Heights
Size: 16 Inch
Legs are sturdy enough, but to hold a small marble top, it required additional glue to secure the "wobble." Adjustable height was excellent and material quality good. Easy enough to install and works well for a table that I don't plan to move frequently.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2025
C
Verified Purchase
Chancee
Carnegie, US
★★★★★ 5
Sturdy, easy, beautiful
Size: 16 Inch
Put these on a coffee table top and it was the perfect combination. It gives an industrial accent to a wood-centered room. Love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 7, 2025
S
Verified Purchase
Stephanie Taylor
Birmingham, US
★★★★★ 1
Stand
Size: 16 Inch
Didn’t work for what I wanted them for
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
D
Verified Purchase
dwheel
Lake Worth, US
★★★★★ 3
There is no side to side stability
Size: 28 Inch
This product was easy to assemble and install and came with all parts. The product itself is very sturdy, looks good with a nice industrial aesthetic BUT - there is ZERO stability side to side (lengthwise) as the plates which attach to the wood are too small. I have them set closer than the picture so it is not an issue of being too far apart. If anyone else had this problem AND FIGURED OUT A FIX FOR IT - please share!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2023

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