About this product
Model: iop_cem70-ec_C704A0
Part Number: C704A0
New CEM70-EC with integrated Right Ascension encoder for realtime periodic error correction
Retaining the inherent properties of the centre balance design, this relatively compact mount provides an impressive 70 lbs (31.8 kg) payload capacity, precise GOTO pointing and accurate tracking (PE <±3.5 arc-sec) so will appeal to both both visual astronomers and astrophotographers.
An impressive features list includes an internal iPolar electronic polar scope and easy lock drive gear engagement (levers large enough to use with gloves).
It also features an advanced cable management system for the mount, iPolar, guider, and camera.
FEATURES
- A new design, center-balanced equatorial mount (CEM) for maximum payload with natural stability
- Ideal for both visual observation and astrophotography
- Payload of 31.8kg / 70lbs with the mount weight of 13.6kg / 30lbs
- 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
- iPolar electronic polar scope
- Go2Nova® 8407+ V2 controller with Advanced GOTONOVA® GOTO Technology with built in heater
- High precision tracking with low periodic error (PE <0.3 arcsec rms)
- Realtime periodic error correction (RPEC) using integrated RA encoder
- 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
- Hard case
Go2Nova Hand Controller 8407
- 200,000+ object database
- 8 line, 21 character back lit large screen LCD
- Low temperature operation as low as -20ºC
- User friendly interface
- 9 speed slew control with quiet mode
- Large object database
- Serial port for firmware upgrade
What's in the box
- Mount head – with iPolar electronic Polar Scope
- Hand Controller (HC) – Go2Nova® 8407+
- Counterweight – 21 lbs (9.5 kg)
- Stainless steel counterweight shaft
- Built-in GPS module
- Hand controller coiled cables
- USB cable
- AC adapter – 100-240V (DC output 12V/5A)
- Hard case
- Quick Start Guide
- Tripod NOT included
Specifications
| Mount | Center-balanced Equatorial Mount (CEM) |
| Payload | 31.8kg (70lbs), exclude counterweight* |
| Mount weight | 13.6kg (30lbs) |
| 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 | PPEC |
| 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® 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 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 | USB2.0 |
| Cable management | 2xDC12V (3A), 3xUSB2.0, 1xDC in/1xDC out, iPort.
1X USB input for mount and USB hub |
| Operation temperature range | -20°C ~ +45°C |
| Hard case | YES |
| Pier/Tripod | Optional LiteRoc tripod or pier |
| Warranty | Two year limited |
* iOptron's quoted max' payload is a guide only. If you will be using the mount for astrophotography (or your telescope is unusually long or large) we recommend the quoted max' payload be reduced by 1/3rd.
** Measured with encoder on the bench, 348 seconds
Downloads / Manuals
Manual:
Quick Start Guide
Instruction Manual
iPolar Operation Manual
Firmware:
Download Latest Firmware
iPolar Software
FTDI VCP Driver, or go to FTDI Chip website to download the VCP driver
iOptron Telescope ASCOM Driver:
Install ASCOM Driver and Commander
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