🎄 Year-end news: operations are slowed down until January 5, 2026! Happy New Year to all! 

More products from the brand :iOptron

iOptron CEM70 EC mount

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

Free delivery
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

Monture harmonique iOptron AZ/EQ HAE29B-EC avec encodeur et iMate
iOptron AZ/EQ HAE29B-EC harmonic mount with encoder and iMate
Price range: CHF 2'859 through CHF 2'989
Monture iOptron CEM70
iOptron CEM70 mount
Price range: CHF 2'899 through CHF 3'199
Sky-Watcher SolarQuest  Go-To solaire avec trépied
Sky-Watcher SolarQuest Go-To solar with tripod
CHF 419
Monture harmonique iOptron AZ/EQ HAE43B-EC avec encodeur et iMate
iOptron AZ/EQ HAE43B-EC harmonic mount with encoder and iMate
Price range: CHF 3'280 through CHF 4'189
Sky-Watcher AZ-EQ6GT Monture Go-To
Sky-Watcher AZ-EQ6GT Go-To mount
CHF 1'899
Paramount ME
Paramount ME
CHF 19'999
Monture iOptron AZ/EQ HAE29C-EC avec encodeur
iOptron AZ/EQ HAE29C-EC mount with encoder
Price range: CHF 2'669 through CHF 2'809
Sky-Watcher EQ8-Rh PRO Monture avec trépied
Sky-Watcher EQ8-Rh PRO Tripod mount
CHF 7'249
Paramount ME avec encodeurs sur axe
Paramount ME with on-axis encoders
CHF 24'999
Monture Celestron CGX complète
Complete Celestron CGX mount
CHF 2'999
GM1000 HPS EP (Enhanced Performance)
GM1000 HPS EP (Enhanced Performance)
CHF 10'799
Sky-Watcher Evolux-62ED
Sky-Watcher Evolux-62ED
CHF 449
Sky-Watcher AGTiX Wi-Fi Tête de monture azimutale double
Sky-Watcher AGTiX Wi-Fi Dual azimuth mount head
CHF 490
Sky-Watcher Star Adventurer GTi Tête de monture seule
Sky-Watcher Star Adventurer GTi Mounting head only
CHF 539
Sky-Watcher WAVE-100i Tête de monture STRAINWAVE avec trépied carbone WAVE
Sky-Watcher WAVE-100i STRAINWAVE mounting head with WAVE carbon tripod
CHF 1'879
Monture JTW Trident GTS
JTW Trident GTS frame
CHF 6'899

Our new products

Adaptateur baader 1.25" vers T2
Adaptateur baader 1.25" vers T2
CHF 29
WandererBox Pro V3
WandererBox Pro V3
CHF 379
Caméra planétaire Player One Mars-C II (IMX662 couleur)
Player One Mars-C II planetary camera (IMX662 color)
Original price was: CHF 199.Current price is: CHF 149.
Caméra ToupTek G3662M (IMX662 mono BSI)
ToupTek G3662M camera (IMX662 mono BSI)
CHF 169
Caméra ToupTek G3M2210M (Capteur SC2210 mono)
ToupTek G3M2210M camera (SC2210 mono sensor)
CHF 229
Caméra ToupTek GPCMOS02000KPA (IMX290 couleur)
ToupTek GPCMOS02000KPA camera (IMX290 color)
CHF 109
Acuter MaksyGo 60 – Mini Dobson Maksutov-Cassegrain
Acuter MaksyGo 60 - Mini Dobson Maksutov-Cassegrain
CHF 119
Offrez une carte cadeau !
Give a gift card!
Price range: CHF 50 through CHF 1'000
Celestron Origin Mark II
Celestron Origin Mark II
CHF 3'999
Trépied en carbone iOptron charge lourde 40mm Ver.A
iOptron heavy-duty carbon tripod 40mm Ver.A
CHF 299
[category_menu_mobile]