The iOptron CEM40 is the next-level center-balanced EQ mount that's as impressive to look at as it is to use. With a lightweight frame of just 17.4 pounds, it can carry a whopping 40-pound payload—pretty amazing, right?
Next-Gen iOptron Features
Get ready for some cutting-edge tech! This mount comes with an iPolar electronic polar scope, making it a cinch to align your telescope even if you can't see the North Star. And those chunky levers on the quick-lock drive system? They make gear engagement a snap.
Compatibility & Quiet Operation
The dual saddle on the CEM40 is ready for both Losmandy and Vixen-style dovetail plates. Plus, the mount uses iOptron's whisper-quiet stepper motor drive system for ultra-precise tracking.
Go2Nova Hand Controller
The Go2Nova hand controller is your gateway to the cosmos. With access to a database of over 212,000 celestial objects, you're set for some serious stargazing. All you need is an Optical Tube Assembly (OTA), and you're ready for an awe-inspiring sky show.
Extras Included
The package comes complete with a tripod, an 11-pound counterweight, and computerized tech for an unbeatable observing setup. Just attach your OTA and you're golden.
Note: This mount utilizes a #8027 counterweight.
Specifications
| Mount | Center-Balanced Equatorial Mount |
| Max payload* | 40 lb (18 kg), exclude counterweight |
| Mount weight | 17.4 lb (7.9 kg) |
| Payload/Mount weight | 2.28 |
| Structure Material | All metal, CNC machined |
| Exterior Finish | Anodized red/black |
| Latitude adjustment range | 0º ~ 60º(special CW shaft mounting if <10° ) |
| Azimuth adjustment range | ± 6º |
| Tracking accuracy (PE)** | <±7.5 arcsec |
| PEC | PPEC |
| Period | 400 sec |
| Worm diameter | Φ17mm, Brass |
| Right Ascension worm wheel | Φ110mm, 216 teeth, zero backlash |
| Declination worm wheel | Φ110mm, 216 teeth, zero backlash |
| Right Ascension axis shaft | Φ45mm steel |
| Declination axis shaft | Φ45mm steel |
| Right Ascension bearings | Φ68mm |
| Declination bearings | Φ68mm |
| Counterweight shaft | Φ28X 280 MM SS 1.2KG |
| Counterweight | 5KG (11LBS) X1 |
| Motor | Precision stepper motor, 1.8º/128X micro-step |
| Motor resolution | 0.08 arcsec (200 PPS) |
| Transmission | Synchronous belt |
| Hand Controller | Go2Nova® HC, 8 line 21 character LCD |
| Star Database | 212,000+, star identification |
| Power | DC 12V, 5A (5.5mm/ 2.5mm plug) |
| AC adapter | 100V ~ 240V (included, for indoor use only) |
| Power consumption | 0.6A(Tracking), 0.9A(GOTO) |
| Power-down memory | Yes |
| Polar scope | Internal iPolar TM electronic polar scope |
| Meridian treatment | Stop (0-10° pass), flip |
| Zero position | Automatic zero search |
| Dovetail saddle | 6" Losmandy D & Vixen |
| Max slew speed | 4.5°/sec (1080x) |
| Guiding port | ST-4 |
| Communication port | USB |
| GPS | Yes |
| WiFi | External (optional) |
| Cable Management | DC12V (3A), ST4,USB |
| Tripod | LiteRoc 1.75" Stainless Steel(7kg) optional tri-pier |
| Hard case | Optional |
| Operation temperature | -10ºC ~ 40ºC |
| Warranty | Two year limited |
* OTA size and length dependent
** Measured with encoder on the bench, 400 seconds