iOptron
iOptron CEM120 GoTo EQ Mount
iOptron CEM120 GoTo EQ Mount
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The innovative mount for larger telescopes
Recognizing the growing demand for an accurate and stable, equatorial mount with the versatility to carry larger instruments and more complex imaging arrays, iOptron has created CEM120. It offers the benefits of their center balance design: stability, accuracy, and smooth mechanical operation, while being capable of carrying a payload up to 52 kg. The center balance design's stability is due to its focusing the mount along with the payload's weight directly over the center of the pier or tripod.
The CEM120's performance is demonstrated by its low periodic tracking error of ±3.5 arc seconds. Along with the stability aspect, it features an advanced cable management system consisting of more ports in more locations preventing tangle ups and reducing the chance of fractured cables. It also adds some new features to the CEM family like Wi-Fi and LAN for remote operation and easy to use, reliable clutches on both axes.
Features:
- A new design, center-balanced equatorial mount (CEM) for maximum payload with natural stability
- Observatory astrophotography mount ideal for both visual and Astro-photographers
- Payload of 52 kg with the mount weight of 26 kg
- Easy to use and reliable gear clutches
- Adjustable counterweight shaft for 0º latitude operation
- Precision altitude and azimuth adjustment.
- Precision stepper motor with 0.07 arcsec accuracy for precise GOTO and accurate tracking
- Polar alignment routine for those who can't see the SCP
- Go2Nova® 8407 V2 controller with Advanced GOTONOVA® GOTO Technology with built in heater
- High precision tracking with low periodic error (PE)<±3.5 arcsec
- Permanent periodic error correction (PPEC)
- Built-in 32-channel GPS
- Built-in WiFi and LAN for remote operation
- Integrated ST-4 autoguiding port
- Advanced cable management system with more choices
- Spring loaded, individually adjustable Losmandy saddle
Specs:
| Mount | Center-balanced Equatorial Mount (CEM) |
| Payload | 52kg, excluding counterweight* |
| Mount Weight | 26kg |
| Payload/Mount weight | 2:1 |
| Material | All Metal |
| Latitude adjustment range | 0°~ 68° (0.5 arcmin division) |
| Azimuth adjustment range | ± 5° (3 arcmin division) |
| Tracking accuracy (PE) | < ±3.5 arcsec |
| Worm Period | 240 sec |
| PEC | PPEC |
| RA & Dec worm wheel | Φ216mm, 360 teeth, zero backlash |
| Worm | Φ26mm |
| RA & Dec Axle | Φ80mm, steel |
| RA & Dec Bearings | Φ125mm |
| Counterweight shaft |
Φ38.1x 540 mm (SS, anti-slip, 4.5kg) |
| Counterweight |
10kg |
| Mount base size |
210 x 230mm |
| Motor drive |
Precision stepper motor w/128 micro-step |
| Resolution |
0.07 arc seconds |
| Slew speed |
4°/sec (960x) max. |
| Hand Controller |
Go2Nova® 8407 V2, 8 line 21 character LCD |
| Power requirement |
DC 12V, 5A |
| Power consumption |
0.7A(Tracking),1.8A(GOTO) |
| Polar Scope |
Not Included |
| Meridian treatment |
Stop (0-14° pass), auto flip |
| Zero Position | Automatic zero search |
| Park Position | Horizontal, vertical, current, alt/azi input |
| Level Indicator | Yes |
| Dovetail saddle |
Losmandy D, 437mm |
| GPS | Yes |
| Guiding Port | ST-4 |
| Communication port | RS232, USB, LAN, WiFi |
| Cable management |
2xDC12V (1A), DC5V(1A), 2xDC (5A), ST4, 6P6C, 4xUSB2.0, USB3.0 (powered), USB for PS, AUX |
| Pier/Tripod |
Optional pier |
| Warranty |
Two year limited |
* These are only guidelines. Some telescopes are very long or very big for their weight and may require a larger mount. Remember also that imaging requirements are more rigid than visual observation.
