PrimaLuceLab ESATTO 3" Robotic Microfocuser (62690)

The ESATTO 3" is a high-precision robotic microfocuser designed for advanced astrophotography and visual observation. It features a Crayford-style mechanism with ball bearings, providing excellent load capacity and eliminating flexure, even with heavy imaging setups. The low-profile design makes it suitable for telescopes with limited backfocus, while its large 76 mm free aperture and 25 mm draw tube travel accommodate a wide range of accessories and cameras. The ESATTO 3" delivers an outstanding focusing resolution of 0.04 microns per step, ensuring extremely accurate adjustments.

This focuser can be controlled via USB-C from any Windows computer or EAGLE control unit, or wirelessly through built-in WiFi using the ESATTO Virtual HandPad app on your smartphone or tablet. It includes an ARCO port for direct connection to the ARCO camera rotator, and a variety of adapters are available for easy integration with different telescopes and cameras. Camera adapters with stop rings help maintain precise alignment and rotation.

Main Features

• Crayford-style focuser with ball bearings for high load capacity and no flexure

• Low-profile design for telescopes with limited backfocus

• 76 mm free aperture and 25 mm draw tube travel

• Focusing resolution of 0.04 microns per step

• Remote control via USB-C or WiFi

• Compatible with EAGLE control units, Windows computers, and the ESATTO Virtual HandPad app

• ARCO port for direct connection to the ARCO camera rotator

• Multiple adapters available for different telescope and camera setups

• Camera adapters with stop rings for precise camera alignment

Specifications

Focusing accuracy: 0.00004 mm (0.04 microns per step)
Free aperture: 76 mm
Draw tube travel: 25 mm
Load capacity: 8 kg
Axle bearings: Ball bearing mounted
Controllable via PC: Yes
Motor-powered: Yes
Series: ESATTO
Weight: 1345 g
Height: 150 mm
Width: 115 mm
Length: 77 mm
Type: Micro Focuser
Build type: Focuser