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 Aug 31 - Sep 5

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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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Hill
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Reviewed in the United States on August 16, 2018
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MARC T
New York, US
★★★★★ 5
Got me home after a sidewall cut!
I am very happy I bought this tire repair kit earlier this year. I was out riding my UTV today and had a flat tire caused by a sidewall cut. I used the tireject kit and was up and running again pretty quickly and it was more than enough to get me back the the truck and trailer. I bought this kit instead of going with a spare tire. I have already bought more of the fluid to replace what I used today.
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Reviewed in the United States on October 7, 2020
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Merv
Cuba, US
★★★★★ 5
Amazing sealant and easy to use even in cold weather.
This product is amazing. It poured right into my tire even though it was -8 celcius. It sealed the crack in my aluminum rim and the the leaky tire bead after I hit a rock. Sealed everything and got me back to trailer and it is still holding air.
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Reviewed in the United States on November 18, 2018
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Noba Henderson
Lexington, US
★★★★★ 5
Flat tire… try this.
Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula
For husband, that’s what he puts in our tires great price and works well
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Reviewed in the United States on May 26, 2026
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Chris
New York, US
★★★★★ 5
Go Ridding and Go Flatless with QuickStrike tire sealent
Size: 1 Gallon + Tool, Set name: Off-Road Formula
I’ve tried several tire sealants over the years on my ebikes and scooters, but FlatOut QuickStrike is by far the best I’ve used. From the moment I added it to my bike tires, I noticed a difference—it’s incredibly easy to install, and you don’t have to convert to tubeless to benefit from its protection. The formula is thin and spreads quickly, sealing punctures almost instantly so you don’t lose much air. What I feel that really stands out is how effective it is. I ride my ebikes through rough terrain with lots of thorns and debris, and since using FlatOut QuickStrike, I haven’t had a single flat ( unlike before ). Even when I’ve picked up multiple punctures, the sealant has handled them all without a problem. I feel that the peace of mind it gives me is priceless, especially on long rides or commutes where a flat could ruin your day ( and It has in the past ). Another big plus is that it’s a one-time application—it won’t dry out or turn into a mess inside your tire ( like that Green Stuff ). It’s also safe for both tubes and tubeless setups, and works well in my 20 inch and 14 inch tires. I’ve used it on my ebikes and scooters and the results have been consistently impressive. Make me feel confident of the durability of my tires on my ride. I bought the gallon bottle because I have a few ebikes and scooters. this stuff works great! If you want to spend less time fixing flats and more time enjoying your ride, this is the sealant to get. Highly recommend!
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