iOptron CEM70

Name: iOptron CEM70
Brand: iOptron

iOptron

iOptron CEM70 is a GoTo equatorial mount for heavier or observatory-class deep-sky rigs.

mount $$$$

Best Current Offer

Cloud Break Optics

In stock

$3,549.00

Other retailers

Telescopes.net (In stock)
$3,588.00
High Point Scientific (In stock)
$3,949.00
Mile High Astronomy (Out of stock)
$3,588.00

Specifications

Mount

Mount type: GoTo German equatorial mount
Drive system: 348 sec
Payload capacity: 2.33
Mount weight: 13.6 kg (30 lb)
Counterweight: Φ28x 415 mm (SS, 1.9 kg)
Latitude range: 0°~ 65°

Motion

Slew rate: 3.75°/sec (900x) max.
Periodic error: < ±5 arcsec
Encoder: justment range 0°~ 65° Azimuth adjustment range ± 4° PE (by encoder)** < ±5 arcsec Worm period 348 sec PEC PPEC Right Ascension worm wheel Φ151 mm, 248 teeth

Electronics

Controller: Go2Nova® 8410, 8 line 21 character LCD
Power: DC 12V, 5A (5.5 mm/2.5 mm plug)

Mechanical

Tripod / pier: Optional LiteRoc tripod (8023ACC) or pier

Astrophotography Fit

A heavy-payload mount that should be chosen by realistic imaging payload, not headline capacity alone.

iOptron CEM70 is a flagship GoTo equatorial mount for computerized tracking and guiding.

For long-exposure astrophotography, use a conservative imaging payload. The telescope, camera, guide hardware, dew heaters, dovetails, and cables all count, and guiding performance matters more than the catalog payload number.

Best paired with

Autoguided refractors or corrected reflectors within conservative payload limits
Stable tripod or pier and balanced counterweights
Computer or hand-controller workflow with good polar alignment

Not recommended for

Payloads at the rated maximum for imaging
Users who need an airline-portable rig above all else
Long focal length work without guiding and careful balance

Where To Buy

Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.

Retailer	Price	Availability	View Offer
Cloud Break Optics Cloud Break Optics	$3,549.00	In stock Updated 11/4/2026	View Offer - $3,549.00
Telescopes.net Telescopes.net	$3,588.00	In stock Updated 11/4/2026	View Offer - $3,588.00
High Point Scientific High Point Scientific	$3,949.00	In stock Updated 11/4/2026	View Offer - $3,949.00
Mile High Astronomy Mile High Astronomy	$3,588.00	Out of stock Updated 11/4/2026	View Offer - $3,588.00

Price History

Chronological retailer pricing with out-of-stock points shown at reduced opacity.

Cloud Break Optics High Point Scientific Mile High Astronomy