iOptron CEM70ECW w/iPolar
Building on the rave reviews of our iOptron CEM60 center-balance equatorial mount, we're thrilled to roll out two next-gen medium payload mounts under the CEM70 series. These bad boys set...
Building on the rave reviews of our iOptron CEM60 center-balance equatorial mount, we're thrilled to roll out two next-gen medium payload mounts under the CEM70 series. These bad boys set a new benchmark in the 70lb payload category. While both models come stacked with cutting-edge features, what really sets the CEM70G apart is its onboard optical guiding system—this improves tracking precision and simplifies your setup, making it more travel-friendly.
Staying true to our signature center-balance design, these medium payload champs deliver exactly what stargazers and astro-photographers crave: a compact yet mighty mount offering pinpoint GOTO accuracy and rock-solid tracking. The CEM70EC in particular is a hit among both casual skywatchers and dedicated imagers.
What makes the CEM70 series a crowd-pleaser? Well, it's kitted out with user-friendly add-ons like an internal iPolar electronic polar scope, easy-to-engage gear clutches you can operate even with gloves on, and a smart cable management system that accommodates the mount, iPolar, guider, and camera. All these tweaks make it clear that we designed the CEM70 with you in mind.
The Lowdown on Features:
- New and improved center-balanced equatorial mount (CEM), offering natural stability while maximizing payload
- Great for peeping at celestial bodies or snapping high-quality astro pics
- Payload capacity: 70 lbs (31.8 kg), yet the mount itself only weighs 30 lbs (13.6 kg)
- Gear clutches that are a breeze to operate
- Fine-tune your viewing with precision altitude and azimuth adjustments
- Stepper motor boasting 0.07 arcsec accuracy, making GOTO and tracking spot-on
- Internal iPolar™ electronic polar scope
- Comes with a Go2Nova® 8410 controller equipped with Advanced GOTONOVA® GOTO Technology, and yes, it has a built-in heater
- Ultra-precise tracking with a periodic error (PE) of less than 0.3 arcsec rms
- Real-time periodic error correction (RPEC)
- 32-channel GPS onboard
- USB3.0 power supply
- Built-in ST-4 autoguiding port
- Cable management system that offers flexibility and keeps things tidy
- Spring-loaded 8" Vixen/Losmandy dual saddle
- NEW bonus: iOptron-subsidized TheSky Imaging Edition software
- Wi-Fi connectivity baked right in
What's in the Box?
Box 1 of 2 (Item #C704AW):
- 1x CEM70ECW mount head, packed in a hard case with all the essential accessories
Box 2 of 2 (Item #7226):
- 1x 9.5kg counterweight
So there you have it, folks—the CEM70 series. Engineered with astro-enthusiasts like you in mind.
Specifications
| Mount | Center-balanced Equatorial Mount (CEM) |
| Payload* | 31.8kg (70 lbs), exclude counterweight |
| Mount weight | 13.6kg (30 lbs) |
| Payload/Mount weight ratio | 2.33 |
| Material | All metal |
| Latitude adjustment range | 0°~ 65° |
| Azimuth adjustment range | ± 4° |
| PE (by encoder)** | < 0.3 arcsec rms** |
| Worm period | 348 sec |
| PEC | Real-time PEC(RPEC) |
| Right Ascension worm wheel | Φ151mm, 248 teeth |
| Declination worm wheel | Φ151mm, 248 teeth |
| Worm | Φ21.2mm |
| Right Ascension axle | Φ55mm, steel |
| Declination axle | Φ55mm, steel |
| Right Ascension bearings | Φ80mm |
| Declination bearings | Φ80mm |
| Counterweight shaft | Φ28x 415 mm (SS, 1.9kg) |
| Counterweight | 9.5 kg (20 lbs) x1 |
| Mount base size | Φ152mm |
| Motor drive | Precision stepper motor w/128 micro-step |
| Resolution | 0.07 arc seconds |
| Slew speed | 3.75°/sec (900x) max. |
| Hand Controller | Go2Nova® 8410, 8 line 21 character LCD |
| Power requirement*** | DC 12V, 5A (5.5mm/2.5mm plug) |
| Power consumption | 0.6A(Tracking),0.8A(GOTO) |
| Polar Scope | Internal electronic polar scope, iPolar |
| Meridian treatment | Stop (0-10° pass), auto flip |
| Zero position | Automatic zero search |
| Park position | Horizontal, vertical, current, alt/azi input |
| Level indicator | YES |
| Dovetail saddle | 8" Losmandy D & Vixen |
| GPS | YES |
| Guiding port | ST-4 |
| Communication port | USB3.0, WiFi |
| Cable management | 1xDC12V (3A), 3xUSB3.0, 1xDC in/2xDC out, iPort. 1X USB input for mount, Guider, iPolar and more |
| Operation temperature range | -10°C ~ +40°C |
| Hard case | Yes |
| Pier/Tripod | Optional LiteRoc tripod (8023ACC) or pier |
| Warranty | Two year limited |
* OTA size and length dependent.
** Measured with encoder on the bench, 348 seconds
*** Included AC adapter is for indoor use only