iOptron Mount CEM120EC2 GoTo Dual High Precision Encoder (56966)

The iOptron CEM120 is a groundbreaking equatorial mount designed to meet the needs of astrophotographers requiring stability, accuracy, and the ability to carry larger instruments or complex imaging setups. With a payload capacity of up to 52kg, it incorporates iOptron's innovative center balance design, which naturally stabilizes the mount by centering the combined weight of the mount and payload directly over the pier or tripod. This design ensures smooth mechanical operation and exceptional tracking performance.

The CEM120 features low periodic tracking error, an advanced cable management system with multiple ports to prevent tangling and cable damage, and modern conveniences such as Wi-Fi and LAN for remote operation. Reliable clutches on both axes make it easy to use, while precision adjustments for altitude and azimuth ensure accurate polar alignment. The mount is available in three versions: CEM120, CEM120EC (with high-resolution encoders for real-time tracking), and CEM120EC2 (featuring encoders on both axes for dual-axis tracking). The CEM120EC2 also supports advanced sky modeling, allowing it to account for polar alignment errors and atmospheric distortion. Fixed home sensors on each axis enable the mount to save alignment models for future use after powering off.

Features:

• Center-balanced equatorial mount (CEM) for maximum payload stability

• Payload capacity of 52kg with a mount weight of only 26kg

• Easy-to-use gear clutches on both axes

• Precision stepper motors with 0.07 arcsecond accuracy for GOTO and tracking

• Polar alignment routine for locations where the Pole Star is not visible

• Go2Nova® 8407 V2 controller with Advanced GOTONOVA® GOTO Technology

• Permanent periodic error correction (PPEC) or real-time PEC for EC versions

• Built-in Wi-Fi and LAN for remote operation

• Integrated ST-4 autoguiding port

• Advanced cable management system to prevent tangling

• Spring-loaded adjustable Losmandy saddle

Specifications:

Capacity:

• Designation: CEM120

• Maximum Payload Capacity: 52kg

• Counterweights: 2x10kg

Interfaces:

• RS232, USB, LAN, Wi-Fi

Power Supply:

• Voltage: 12V

• Amperage: 5A

Polar Elevation Setting:

• Range: 0°–68°

Mounting Saddle:

• Losmandy-style

Dimensions:

• DEC Ball Bearings Diameter: 125mm

• RA Ball Bearings Diameter: 125mm

• DEC Worm Gear Diameter: 216mm (360 teeth)

• RA Worm Gear Diameter: 216mm (360 teeth)

• DEC Axis Diameter: 80mm

• RA Axis Diameter: 80mm

• Counterweight Bar Diameter: 38.1mm

Tracking Precision:

• < +/- 0.15 arcseconds

Motor Type:

• Stepper motors with 128 micro-steps

Software and Features:

• GoTo system: Yes (Go2Nova8407 V2)

• GPS: Yes (32-channel)

• Controllable via PC: Yes (ASCOM compatible)

• Hand Controller: Yes

Special Features:

• Permanent PEC correction: Yes (real-time for EC versions)

• Autoguider Interface: Yes (ST-4 compatible)

Equipment:

• Tripod: Not included

• Pole Finder: Not included

General Information:

• Total Weight: 46kg (mount head only: 26kg)

• Series: CEM120

• Type: Mount (Equatorial)

Area of Application:

• Suitable for astrophotography: Yes