iOptron CEM70
iOptron
iOptron CEM70 is a GoTo equatorial mount for heavier or observatory-class deep-sky rigs.
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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 5/10/2026 | View Offer - $3,549.00 |
| Mile High Astronomy Mile High Astronomy | $3,588.00 | In stock Updated 5/14/2026 | View Offer - $3,588.00 |
| Telescopes.net Telescopes.net | $3,588.00 | In stock Updated 5/14/2026 | View Offer - $3,588.00 |
| High Point Scientific High Point Scientific | $3,949.00 | In stock Updated 5/13/2026 | View Offer - $3,949.00 |