Product Overview
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Recognizing the growing demand for an accurate and stable, equatorial mount with the versatility to carry larger instruments and more complex imaging arrays, we created the iOptron CEM120. It offers the benefits of our revolutionary “center balance” design: stability, accuracy, and smooth mechanical operation, while capable of carrying a payload up to 115 lbs (52 kg). The “center balance” design’s natural stability is due to its focusing the mount along with payloads 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, the CEM120 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 115 lbs (52 kg) with the mount weight of 57 lbs (26 kg)
- Easy to use and reliable gear clutches
- 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 Pole Star
- Go2Nova® 8410 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)
- 32-channel Global Positioning System (GPS)
- Built-in WiFi and LAN for remote operation
- Integrated ST-4 autoguiding port
- Advanced cable management system with more choices
- Spring loaded, individual adjustable Losmandy saddle
PACKAGE CONTENTSBox 1 of 2: #7320
- CEM120 mount head x1
- Go2Nova 8410 hand controller x1
- Hand controller cable x1
- Counterweight shaft x1
- Accessory package x1
Box 2 of 2: #7325
- 10 kg counterweight x2
Specifications
CEM120 Specifications
| Manufacture | iOptron |
| Model | CEM120 |
| Mount Type | CEM (Center balanced EQ Mount) |
| Payload (excl. CW) | 52 kg(115 lbs) |
| Mount Weight | 26 kg (57 lbs) |
| Payload/Mount Weight | 2 |
| Latitude Adjustment Range | 0~68° (0.5 arc min devision) |
| Azimuth Adjustment Range | ±5° (3 arc min division) |
| Tracking Accuracy (PE) | <±3.5 arcsec, < 0.15 arcsec RMS (EC) |
| Period | 240 sec |
| Right Ascension Worm Wheel | 360 teeth, Ø216 mm, zero backlash |
| Declination Worm Wheel | 360 teeth, Ø216 mm, zero backlash |
| Worm | Ø26 mm |
| Right Ascension Axle | Ø80 mm, steel |
| Declination Axle | Ø80 mm, steel |
| Right Ascension Bearings | Ø125 mm |
| Declination Bearings | Ø125 mm |
| Counterweight Shaft | Ø38.1 x 540 mm (SS, none slip, 4.5 kg) |
| Counterweight | 10 kg (22 lbs) x2 |
| Mounting Base Diameter | 210 x 230 mm |
| Motor | precision stepper motor w/128 micor-step |
| Resolution | 0.07 arcsec |
| Hand Controller | Go2Nova 8407+; 8 line 21 character LCD |
