The ESATTO 4" Robotic Focuser is engineered for demanding astrophotography and observatory applications, providing robust performance for large telescopes and astrographs that require a wide, unobstructed aperture.
Key Features
- Crayford-style focuser with 40 ball bearings for high load capacity and minimal flexure
- Large 102.2mm free aperture supports heavy imaging equipment
- Low-profile design with only 65mm thickness (91mm with internal flange)
- 35mm travel range with ultra-fine 0.04 micron step resolution
- Remote control via USB-C, WiFi, or ASCOM-compatible software
- Dedicated ARCO port for seamless integration with camera rotators and field de-rotators
Advanced Control Options
- Compatible with EAGLE and Windows computers
- WiFi connectivity and Virtual HandPad app for wireless operation
Designed for Large Astrographs
The ESATTO 4" is ideal for telescopes like the Takahashi FSQ-106, enabling precise, remote focusing even with heavy cameras and accessories. Optional adapters are available for specific telescope models (not included).
