The iOptron CEM26EC is designed for astrophotographers who demand absolute precision in a compact, easy-to-use mount. With its Center-Balanced Equatorial Mount (CEM).-design, iPolar electronic polar finder, integrated WiFi, and EC encoder with an unparalleled accuracy of less than 0.3 arc seconds, it delivers exceptional performance in every session.

Compact and balanced design
The innovative CEM design perfectly balances the weight of the telescope around the center of the tripod. This ensures maximum stability and minimal vibration - essential for sharp astrophotos, even in long exposures. With a carrying capacity of 12 kg and a own weight of only 4.5 kg, the CEM26EC offers an impressive ratio of power to portability.
EC version with real-time error correction
The EC variant is equipped with high-resolution encoders on the straight-climbing axis (RA axis), which is the correct periodic error in real time. As a result, external guiding is often unnecessary. The result: extremely smooth tracking, ideal for deep-sky astrophotography.
Smart technology for accurate tracking
With Go2Nova® control., more than 212,000 celestial objects, and precise stepper motors, the CEM26EC tracks any object smoothly and reliably. The built-in Periodic Error Correction (PEC). and ST-4 autoguiding port further increase accuracy, while the Easy Polar Alignment-function makes alignment easy - even when the North Star is not visible.

iPolar electronic polar finder
The built-in iPolar® locator makes pole alignment faster and more precise than ever. Whether the Pole Star is visible or not, you can always align exactly. Ideal for astrophotographers who want to work quickly and efficiently.
Robust and user-friendly
The CNC machined mount is sturdy, durable and features large rotary knobs for easy operation even with gloves on. The LiteRoc stainless steel tripod legs provide stability with minimal vibration. A aluminum transport case with foam lining Protects your gear on the go.
Ready for modern astrophotography
With built-in WiFi, USB port, and optional 32-channel GPS and iGuider auto-guidance system, the CEM26EC is fully compatible with modern setups. Its quiet operation and low power consumption also make it suitable for portable observations in the field.
The iOptron CEM26EC combines portability, balance and precision - perfect for anyone who wants to make the most of their nights under the stars.
Specifications
| Feature | Specification |
|---|---|
| Type | Center-Balanced Equatorial Mount (CEM). |
| Max. load capacity | 12 kg |
| Own weight | 4.5 kg |
| Counterweight | 1 × 4.5 kg (steel) |
| Counterweight bar | 20 mm diameter, adjustable |
| Pole adjustment | 0°-60° |
Drive & Accuracy
| Feature | Specification |
|---|---|
| Drive Type | Wormwheel |
| Worm Material | Brass |
| Worm Gear Equipment | Aluminum |
| Teeth (RA) | 144 |
| Encoder | Yes (EC real-time correction) |
| Tracking accuracy | ±6 arc seconds (EC < 0.3 arc seconds) |
| Periodic error correction (PEC). | Yes, permanently |
| Tracking speeds | Sidereal, Sun, Moon |
Motors
| Feature | Specification |
|---|---|
| Engine Type | Stepper motor |
| Speeds | 1×, 2×, 8×, 16×, 64×, 128×, 256×, 512× |
| Current consumption (open circuit) | 0.8 A |
| Power supply | 12V DC |
Controls & Software
| Feature | Specification |
|---|---|
| Operating System | Go2Nova® |
| Database | 212,000+ objects |
| Display | Backlit LCD |
| Alignment methods | 1, 2, and 3-star alignment |
| PC control | Yes (ASCOM via USB) |
| Firmware updates | Yes, via the internet |
| WiFi | Built-in |
| GPS | Optional (32-channels) |
| Autoguiding | Yes (ST-4 compatible) |
| iGuider compatibility | Yes |
Interfaces
| Feature | Specification |
|---|---|
| Gates | ST-4, USB, HBX |
| Internal cable routing | Yes |
| PEC correction | Yes |
| GoTo System | Yes |
| WLAN | Yes |
Polar alignment
| Feature | Specification |
|---|---|
| Pole finder | Built-in iPolar® |
| Easy Polar Alignment | Yes |
| Polar axis scale | Yes |
| Polar alignment without a pole star | Yes |
Tripod
| Feature | Specification |
|---|---|
| Type | LiteRoc tripod |
| Material | Stainless steel |
| Weight | 7.5 kg |
| Accessory holder | Yes (cast steel with vibration pads) |
General
| Feature | Specification |
|---|---|
| Color | Black/Red |
| Series | CEM26 |
| Total weight | 18.5 kg |
| Operating temperature | -10°C to +40°C |
| Transport case | Yes, aluminum with foam lining |
| Nutrition | 12V DC |








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