More products from the brand :iOptron

iOptron CEM70 EC mount

Price range: CHF 4'299 through CHF 4'499

Free delivery against signature
Easy, free returns

Frame SEO description iOptron CEM70 EC

The center-balanced equatorial mount iOptron CEM70 EC is designed for astronomy and astrophotography enthusiasts looking for a high-performance, stable and relatively portable solution. Its innovative Center-Balanced Equatorial Mount architecture reduces vibrations and enables precise tracking of celestial objects, even at long exposures. Thanks to its high load-to-weight ratio and Go2Nova® control, this mount is the ideal choice for observing and imaging nebulae, galaxies and star clusters with maximum sharpness.

Visit CEM70 EC is distinguished by :

  • Load capacity of 31.8 kg (70 lb) to accommodate refractors, mirrors and heavy accessories.
  • A total weight of 13.6 kg for the frame alone, making it easy to transport to dark-sky sites.
  • High-precision stepper motors (0.07″ per step) ensure smooth, silent tracking.
  • Integrated iPolar port for electronic polar alignment, even in the presence of optical obstacles.
  • A Go2Nova 8407+ V2 controller with a database of over 40,000 objects and advanced GOTO functions.
  • A real-time periodic error correction (RPEC) system offering an accuracy of less than 0.3″ RMS.
  • All-metal mechanical design and ergonomic locking levers for use with gloves.
  • A Vixen/Losmandy double saddle for optimum compatibility with optical tubes and accessories.

Technical specifications

Features Detail
Type Center-balanced equatorial mount (CEM)
Payload 31.8 kg (70 lb)
Frame weight 13.6 kg (30 lb)
Load/weight ratio 2,33
Material Aluminum alloy and steel
Latitude adjustment 0° à 65°
Azimuth adjustment ± 4°
Precision per step 0,07″
Periodic Correction (PEC) Real-time EPSC < 0.3″ RMS
Controller Go2Nova 8407+ V2, 40,000+ items
Polar alignment iPolar integrated electronics
Saddle Double Vixen/Losmandy

Designed for demanding astrophotographers, the iOptron CEM70 EC offers an optimum balance between performance, portability and robustness. Its load-to-weight ratio allows heavy configurations to be carried without sacrificing stability, while precise tracking and real-time correction guarantee sharp images without star trails. The Go2Nova® interface facilitates celestial navigation, and electronic polar alignment considerably reduces set-up time.

Comparison CEM70 EC vs. CEM70 EC2

Criteria CEM70 EC CEM70 EC2
Encoders 1 high-resolution encoder (AD axis) 2 high-resolution encoders (AD & DEC axes)
Periodic error correction On a single axis (AD) in real time On both axes (AD & DEC) in real time
Long exposure precision Excellent Optimal (greater resistance to imbalances)
Vibration resistance High Maximum (dual sensors)
Recommended use Advanced astrophotography Very long exposure astrophotography & deep imaging
Price guide More affordable Slightly higher

In short, the CEM70 EC is a powerful choice for most astrophotography configurations, offering precise tracking and good value for money. The CEM70 EC2 gains in robustness and precision thanks to its dual encoder system, making it the mount of choice for extreme long exposure imaging projects or for astrophotographers seeking the best periodic error correction on both axes.

Products in the same category

Skywatcher STARQUEST DX102MC
Skywatcher STARQUEST DX102MC
CHF 369
StarTravel 150/750 HEQ5-R PRO
StarTravel 150/750 HEQ5-R PRO
CHF 1'849
Sky-Watcher EQ8-R PRO (Tête)
Sky-Watcher EQ8-R PRO (Head)
CHF 3'649
Skywatcher STARQUEST-1145P
Skywatcher STARQUEST-1145P
CHF 239
Sky-Watcher AZ5 Deluxe (tête seul)
Sky-Watcher AZ5 Deluxe (head only)
CHF 248
Monture Celestron CGX complète
Complete Celestron CGX mount
CHF 2'999
Monture EQ6-R PRO
EQ6-R PRO mount
CHF 1'799
Skywatcher Startravel 102 AZ-GTe GoTo
Skywatcher Startravel 102 AZ-GTe GoTo
CHF 469
Sky-Watcher EVOSTAR 120 HEQ5-R PRO GoTo
Sky-Watcher EVOSTAR 120 HEQ5-R PRO GoTo
CHF 1'649
Sky-Watcher EVOSTAR 102 EQ3-2
Sky-Watcher EVOSTAR 102 EQ3-2
CHF 549
Sky-Watcher Skymax-102 AZ-GTi
Sky-Watcher Skymax-102 AZ-GTi
CHF 569
Sky-Watcher Star Discovery AZ Go-To
Sky-Watcher Star Discovery AZ Go-To
CHF 349
StarTravel 120/600 AZ3
StarTravel 120/600 AZ3
CHF 479
Skywatcher Astrolux 76/700
Skywatcher Astrolux 76/700
CHF 149
Sky-Watcher EQ5 PRO
Sky-Watcher EQ5 PRO
CHF 898
Monture harmonique Rainbow Astro RST135
Rainbow Astro RST135 harmonic mount
CHF 4'499

Our new products

Askar 60F 0.75× Reducer
Askar 60F 0.75× Reducer
CHF 139
Askar 91F 0.75× Reducer
Askar 91F 0.75× Reducer
CHF 139
Askar 111F 0.74× Reducer
Askar 111F 0.74× Reducer
CHF 229
Askar 131F 0.74× Réducteur Correcteur
Askar 131F 0.74× Reducer Corrector
CHF 229
Askar 131F Flat-Field
Askar 131F Flat-Field
CHF 1'619
Askar 60F Flat-Field
Askar 60F Flat-Field
CHF 429
Kit Go-To SynScan™ Sky-Watcher pour Monture EQ3-2
Go-To SynScan™ Sky-Watcher kit for EQ3-2 mount
CHF 449
Réducteur / Correcteur 0.77x pour Esprit-150ED
0.77x Reducer / Corrector for Esprit-150ED
CHF 419
[category_menu_mobile]