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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 revolutionary 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. On top of the built-in guiding system the CEM70G also comes standard with WiFi and USB 3.0.
|Mount Type||CEM (Center balanced EQ Mount)||CEM (Center balanced EQ Mount)|
|Payload (excl. CW)||31.8 kg（70 lbs)||31.8 kg（70 lbs)|
|Mount Weight||13.6 kg (30 lbs)||13.6 kg (30 lbs)|
|Latitude Adjustment Range||0～65°||0～65°|
|Azimuth Adjustment Range||±4°||±4°|
|Tracking Accuracy (PE)||< ±3.5 arcsec||< ±3.5 arcsec|
|Period||348 sec||348 sec|
|Right Ascension Worm Wheel||248 teeth M=0.6 Ø151 mm||248 teeth M=0.6 Ø151 mm|
|Declination Worm Wheel||248 teeth M=0.6 Ø151 mm||248 teeth M=0.6 Ø151 mm|
|Worm||Ø21.2 mm||Ø21.2 mm|
|Right Ascension Axle||Ø55 mm steel||Ø55 mm steel|
|Declination Axle||Ø55 mm steel||Ø55 mm steel|
|Right Ascension Bearings||Ø80mm||Ø80mm|
|Counterweight Shaft||Ø28 x 415 mm (SS, 1.9kg)||Ø28 x 415 mm (SS, 1.9kg)|
|Counterweight||9.5 kg x 1||9.5 kg x 1|
|Mounting Base Diameter||Ø152mm||Ø152mm|
|Motor||1.8° stepper motor w/128 micor-step||1.8° stepper motor w/128 micor-step|
|Resolution||0.07 arcsec||0.07 arcsec|
|Transmission||Synchronous belt||Synchronous belt|
|Hand Controller||Go2Nova 8407+; 8 line 21 character LCD||Go2Nova 8407+; 8 line 21 character LCD|
|Power||DC 12V, 5A||DC 12V, 5A|
|Power Consumption||0.6A (tracking), 0.8A (GOTO)||0.6A (tracking), 0.8A (GOTO)|
|Polar Scope||Internal eletronic polar scope, iPolar||Internal eletronic polar scope, iPolar|
|Meridian treatment||Stop (0-10° pass), flip||Stop (0-10° pass), flip|
|Zero position||Automatic zero search||Automatic zero search|
|Park position||horizontal, vertical, current, alt/azi input||horizontal, vertical, current, alt/azi input|
|Dovetail saddle||8" Losmandy D & Vixen||8" Losmandy D & Vixen|
|Slew speed||3.75°/sec (900x) max.||3.75°/sec (900x) max.|
|PEC||Permanent PEC||Permanent PEC|
|communication Port||USB3.0, Wifi||USB2.0|
|Cable Management||2xDC12V (3A), 3xUSB3.0, 1xDC in/2xDC out, iPort. 1X USB input for mount, iGuider, iPolar and more||2xDC12V (3A), 3xUSB2.0, 1xDC in/1xDC out, iPort. 1X USB input for mount, iPolar and accessories|
|Guiding scope/camera||Built in guiding scope and camera, iGuider||No|
|Operation temperature range||-20°C ~ +45°C||-20°C ~ +45°C|
|Pier/Tripod||Optional LiteRoc tripod or pier||Optional LiteRoc tripod or pier|