The iOptron CEM120EC is built for anyone who wants to combine serious astrophotography with absolute stability. This advanced mount lifts your setup to observatory level. Thanks to its smart, center-balanced design, everything stays in perfect balance, even with heavy telescopes up to 52 kg.
Smart design for maximum stability
The secret of the CEM120EC lies in its centrally balanced construction. The weight of your telescope rests directly over the center of the tripod or column, keeping the mount in complete balance. You notice it immediately: less vibration, smoother movements and razor-sharp images, even with long exposures.
Track stars with unprecedented precision
The built-in high-resolution encoder on the RA axis provides nearly flawless tracking. You don't have to constantly correct - the mount tracks your target object automatically, smoothly and accurately. This keeps stars pointed and details in nebulae clearly visible.
Strong, but surprisingly light
Despite its huge load capacity of 52 kg, the CEM120EC itself weighs only 26 kg. This makes it stable, yet easy to move. The spring-loaded Losmandy saddle clamp holds your telescope firmly, with no slack or tilt.
Smart cable management - never tangle again
Nothing is more frustrating than tangled cables during a night of recording. The CEM120EC has a advanced cable management system with connections in multiple places. Everything stays neat, protected and stress-free - so you can focus on the sky, not your cabling.
User-friendly operation at every level
With the Go2Nova® 8407 V2 system. and built-in Wi-Fi and LAN operate the mount easily via hand controller, laptop or tablet. Thanks to the 32-channel GPS your system always knows where you are, so you can get started quickly. No fuss, just point, center and shoot.
Reliable performance every session
The permanent periodic error correction (PPEC) keeps tracking error-free, while the precision stepper motors your movements smoothly and quietly. So you get consistent results night after night.
Whether you're photographing a deep nebula or working from a fixed observatory setup - the iOptron CEM120EC provides the power, control and precision you need to capture top-quality images.
Specifications
Capacity
| Feature | Description |
|---|---|
| Series | CEM120 |
| Type | Equatorial mount |
| Max. load capacity | 52 kg |
| Mounting weight | 26 kg |
| Counterweight | 2 × 10 kg |
| Mounting saddle | Losmandy-style |
Mechanical & Motor
| Feature | Description |
|---|---|
| Design | Centrally balanced (CEM) |
| Encoder | Yes (high resolution on RA axis) |
| Motors | Stepper motors (128 microsteps) |
| Periodic error correction | Yes (permanent / real-time PEC) |
| Tracking accuracy | ±0,15″ |
| Wormwheel (RA/DEC) | 216 mm, 360 teeth, aluminum |
| Wormas | 26 mm brass |
| Shaft diameter (RA/DEC) | 80 mm |
| Bearing diameter | 125 mm |
Connectivity & Control
| Feature | Description |
|---|---|
| GoTo System | Go2Nova® 8407 V2 |
| Number of objects | 212.000+ |
| Interfaces | RS232, USB, LAN, Wi-Fi |
| PC control | Yes (ASCOM compatible) |
| GPS | 32-channel built-in |
| Autoguider port | Yes (ST-4) |
Use & Setting
| Feature | Description |
|---|---|
| Height range | 0°-68° |
| Azimuth fine adjustment | ±5° |
| Polar alignment without a pole star | Yes |
| Level indicator | Yes |
Nutrition & Power
| Feature | Description |
|---|---|
| Nutrition | 12V DC (included) |
| Power consumption | 700-1800 mA |
| Current | 5 A |
Other data
| Feature | Description |
|---|---|
| Tripod | Not included |
| Total weight | 46 kg |
| Cable guide | Internal |
| Suitable for | Astrophotography, observatory use |
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