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

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iOptron CEM70ECW w/iPolar

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