iOptron CEM120 Mounting GoTo

iOptron CEM120 GoTo Mount: the heavy-duty boy for the observatory

The iOptron CEM120 is a center-balanced equatorial GoTo mount for the heaviest amateur setups: 52 kg (115 lbs) payload capacity, excluding counterweights, with a head weight of 26 kg (57 lbs). Designed for observatories and permanent setups with large optics and complete imaging systems.

The basic version provides everything for a fixed setup: two 10 kg counterweights, built-in GPS, WiFi and LAN, and the complete GoTo control system.

The periodic error remains under plus or minus 3.5 arcseconds: a strong foundation for guided astrophotography with long focal lengths.

Heavy mechanics, fine tracking behavior

Machining 80 mm thick shafts on 125 mm bearings; the 216 mm worm wheels with 360 teeth and a worm period of 240 seconds provide tracking performance with a periodic error of under plus or minus 3.5 arcseconds.

The spring-loaded Losmandy saddle and the adjustable counterweight shaft (usable down to the equator) make the mount suitable for virtually any large OTA. The head is supplied without a tripod; the Tri-Pier with adapter or a permanent pier is the suitable base.

Observatory class control

The Go2Nova 8407 V2 hand controller with display heating contains over 200,000 objects. GPS, WiFi, and a LAN connection are built-in, so the mount fits directly into any observatory network.

Autoguiding is possible via the ST-4 port; the extensive multi-port cable management also keeps dual photography setups tidy.

Expandable as desired

The mount can be retrofitted with the iPolar electronic polar scope for the CEM120 and fits on the iOptron Tri-Pier tripod using the Tri-Pier adapter.

Included

• CEM120 mounting head
• Go2Nova 8407 V2 hand controller with display heating
• Two 10 kg counterweights with counterweight bar
• Network adapters and cables

Featured accessories

Combine the head with the 230 mm Tri-Pier adapter for mounting on the Tri-Pier, and the iPolar for the CEM120 for electronic polar alignment.

For whom yes and for whom no

• ✓ Observatory builders and owners of large catadioptric telescopes or dual-camera setups
• ✓ If you want to control a fixed setup up to 52 kg via a network
• ✗ Mobile observers: a CEM70 or smaller is then more practical
• Those who want to photograph without autoguiding: choose the EC or EC2 version

Specifications

You can find more mounts and accessories for this merk at the iOptron merk page.