🎄 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

Sky-Watcher AGTiX Wi-Fi Tête de monture azimutale double
Sky-Watcher AGTiX Wi-Fi Dual azimuth mount head
CHF 490
Move Shoot Move - Monture ultra portable Nomad Star Tracker
Move Shoot Move - Nomad Star Tracker ultra-portable mount
Price range: CHF 199 through CHF 339
Monture équatoriale Pegasus NYX-88
Pegasus NYX-88 equatorial frame
CHF 1'699
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 AGTiX Wi-Fi avec trépied
Sky-Watcher AGTiX Wi-Fi with tripod
CHF 579
Monture harmonique iOptron AZ/EQ HAE69B avec iMate
iOptron AZ/EQ HAE69B harmonic mount with iMate
Price range: CHF 3'899 through CHF 5'199
Sky-Watcher SkyTee-2 Monture altazimutale double avec trépied
Sky-Watcher SkyTee-2 Dual altazimuth mount with tripod
CHF 489
Sky-Watcher Evolux-62ED
Sky-Watcher Evolux-62ED
CHF 449
Sky-Watcher Star Adventurer MINI Wi-Fi (SAM) (Pro-Pack)
Sky-Watcher Star Adventurer MINI Wi-Fi (SAM) (Pro-Pack)
CHF 339
Monture JTW Trident GTR
JTW Trident GTR frame
CHF 5'399
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
Paramount MX
Paramount MX
CHF 11'999
Monture Celestron CGX-L complète
Complete Celestron CGX-L mount
CHF 4'799
Sky-Watcher Star Adventurer GTi Tête de monture seule
Sky-Watcher Star Adventurer GTi Mounting head only
CHF 539
Paramount ME
Paramount ME
CHF 19'999
Sky-Watcher AZ Pronto Monture altazimutale avec trépied
Sky-Watcher AZ Pronto Altazimuth mount with tripod
CHF 269

Our new products

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
iOptron SkyGuider Pro
iOptron SkyGuider Pro
CHF 299
[category_menu_mobile]