From $8,698.00
4 stores
The iOptron CEM120 EC2 is a precision-engineered, center-balanced equatorial GoTo mount designed for demanding astrophotographers and observatories requiring research-grade tracking accuracy. Featuring dual high-resolution encoders on both RA and declination axes, it delivers sub-arcsecond tracking accuracy of less than 0.15 arcseconds RMS with real-time periodic error correction (RPEC), enabling unguided imaging and long-exposure astrophotography. With a 115-pound payload capacity and intelligent center-balanced architecture that places the telescope's weight directly over the tripod or pier, this mount offers exceptional stability and one of the best load-to-weight ratios in the industry, making it ideal for large refractors, astrographs, and multi-instrument setups in permanent installations and automated observatories.
OPT
CEM120 EC2 Center Balanced EQ Mount with Dual High End Encoders
$8,698.00
First Light Optics
iOptron CEM120-EC2 Center Balanced Equatorial GoTo Mount with RA and Dec Encoders
£6,749.00
~$9,097.32
Astronomics
CEM120 EC2 Center Balanced EQ Mount With Dual High Precision Encoders
$9,569.00
Astroshop.eu
Mount CEM120EC2 GoTo Dual High Precision Encoder
€8,413.00
~$9,918.07
| Stepper Motor Accuracy | 0.07″ |
| Included Counterweight | 10 lb |
| Power Consumption (Tracking) | 0.7 A |
| Saddle Length | 17.2 in |
| LAN Connectivity | ✓ |
| Counterweight Shaft Diameter | 38.1 mm |
| Real-Time Periodic Error Correction | ✓ |
| RA Shaft Diameter | 80 in |
| Worm Gear Teeth | 360 |
| Payload Capacity | 52 lb |
| Slew Speed | 4° |
| Operating Voltage | 12 V |
| Built-in 32-Channel GPS | ✓ |
| Center-Balanced Design | ✓ |
| GPS Channels | 32 |
| DEC Shaft Diameter | 80 mm |
| WiFi Connectivity | ✓ |
| Tracking Accuracy | 0.15′ |
| Power Consumption (Slewing) | 1.8 A |
| Dual High-Resolution Encoders | ✓ |
| Worm Gear Diameter | 216 mm |
| Saddle Type | Losmandy-style D plate |
| Fixed Home Sensors | ✓ |
| Hand Controller | Go2Nova 8407 V2 |
| Mount Head Weight | 26 kg |
| Bearing Diameter | 125 mm |
| Advanced Sky Modeling | ✓ |