From $3,570.00
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The iOptron CEM40ECA is a center-balanced German equatorial GoTo mount engineered for portable astrophotography and visual observation. Weighing just 15.8 pounds, it delivers a remarkable 40-pound payload capacity through its patented center-balanced design that places the optical tube's weight directly over the tripod's center of gravity. The mount features real-time tracking correction with ±0.25 arcsecond RMS accuracy (typical) delivered by a high-resolution right ascension encoder, making it ideal for long-exposure imaging without constant autoguiding. The integrated iPolar polar alignment camera enables fast, sub-arcminute precision polar alignment—even when Polaris is hidden by trees or obscured by observatory walls. This head-only package includes the iPolar system and hard case for transport, offering upgraders a cost-effective way to enhance their tracking performance.
| Latitude Range | 0° |
| Power Requirement | 12 |
| Polar Scope | iPolar electronic polar alignment camera |
| Mount type | Center-Balanced German Equatorial (CEM) |
| RA Worm Wheel Diameter | 110 mm |
| Motor Type | Precision stepper motors, 1.8° |
| Power Draw (Tracking) | 0.6 A |
| Maximum Slew Speed | 4.5° |
| RA/DEC Bearing Diameter | 68 mm |
| RA/DEC Axle Diameter | 45 mm |
| Periodic Error (Standard CEM40) | 7″ |
| GPS Channels | 32 |
| Saddle Type | Universal Self-Centering Saddle (USCS) - accepts Losmandy and Vixen-style dovetails |
| Includes | Mount head, iPolar system, Go2Nova 8407+ hand controller, custom hard case |
| Mount Head Weight | 15.8 kg |
| Motor Resolution | 0.08″ |
| Azimuth Adjustment | 6 |
| Autoguider Port | ST-4 |
| Tracking Accuracy | 0.25′ |
| Payload Capacity | 40 lb |
| RA Worm Diameter | 17 mm |
| Celestial Object Database | 359000 |
| Power Draw (GoTo) | 0.9 A |
| Material | CNC-machined aluminum with steel axles |
| Hand Controller | Go2Nova 8407+ |
| Communication Ports | USB |