Following up on the success of the iOptron CEM60 center balance equatorial mount, we at iOptron are excited to introduce two new medium payload center balance mounts. The CEM70 and CEM70G are new standard bearers for equatorial mounts in the 70lb payload segment. Both models are packed with advanced features however the CEM70G is the first of its type with an onboard optical guiding system increasing tracking accuracy while streamlining the components resulting in a more portable imaging setup. Retaining the inherent properties of the center balance design, these relatively compact medium payload mounts deliver what astronomers expect in an efficient accurate portable mount. With precise GOTO pointing and accurate tracking (PE <±3.5 arcsec) the CEM70 is a solid performer for observers and imagers alike. Innovative operational features such as the internal iPolar electronic polar scope, easy lock drive gear engagement (levers large enough to use with gloves), an advanced cable management system for the mount, iPolar, guider, and camera, and cumulatively assure users the CEM70 and 70G designed with their needs in mind
A new design, center-balanced equatorial mount (CEM) for maximum payload with natural stability
Ideal for both visual observation and astrophotography
Payload of 70 lbs (31.8 kg) with the mount weight of 30 lbs (13.6 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
iPolarTM electronic polar scope
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)
32-channel Global Positioning System (GPS)
USB connection
Integrated ST-4 autoguiding port
Advanced cable management system with more choices
Spring loaded 8" Vixen/Losmandy dual saddle
NEW iOptron subsidized TheSky Imaging Edition
➤ Box 1 of 2: #C702A
➤ 1x CEM70G mount head in Hard Case with Accessories
➤ Box 2 of 2: #7226
➤ 1x 9.5kg counterweight
| Parameter | Value |
|---|---|
| Mount Type | Center-balanced Equatorial Mount (CEM) |
| Payload Capacity* | 31.8kg (70 lbs), excluding counterweight |
| Mount Weight | 13.6kg (30 lbs) |
| Payload/Mount Weight Ratio | 2.33 |
| Material | All Metal Construction |
| Latitude Adjustment Range | 0° – 65° |
| Azimuth Adjustment Range | ± 4° |
| Periodic Error (PE)** | < ±3.5 arcseconds (by encoder) |
| Worm Period | 348 seconds |
| PEC | PPEC (Permanent Periodic Error Correction) |
| RA/DEC Worm Wheel | Ø151mm, 248 teeth |
| Worm Diameter | Ø21.2mm |
| RA/DEC Axle | Ø55mm, Steel |
| RA/DEC Bearings | Ø80mm |
| Counterweight Shaft | Ø28 × 415mm (SS, 1.9kg) |
| Counterweight | 9.5kg (20 lbs) × 1 |
| Mount Base Diameter | Ø152mm |
| Motor Drive | Precision Stepper Motor with 128 Microsteps |
| Resolution | 0.07 arcseconds |
| Max Slew Speed | 3.75°/sec (900x) |
| Hand Controller | Go2Nova® 8407+, 8-line 21-character LCD |
| Power Requirement | DC 12V, 5A (5.5mm/2.5mm plug) |
| Power Consumption | 0.6A (Tracking), 0.8A (GoTo) |
| Polar Alignment | Internal iPolar Electronic Polar Scope |
| Meridian Treatment | Stop (0°–10° Pass), Auto Flip |
| Zero Position | Automatic Zero Search |
| Park Position Options | Horizontal, Vertical, Current, Alt/Azi Input |
| Level Indicator | Yes |
| Dovetail Saddle | 8″ Losmandy D & Vixen Compatible |
| GPS | Yes (Built-in) |
| Guiding Port | ST-4 Compatible |
| Communication Port | USB 2.0 |
| Cable Management | 2×DC12V (3A), 3×USB 2.0, 1×DC in/out, iPort, 1×USB input for mount & hub |
| Operating Temperature | -10°C to +40°C |
| Hard Case | Included |
| Pier/Tripod | Optional LiteRoc Tripod or Pier |
