PrimaLuceLab ESATTO 4 (69960)

The ESATTO 4" is a large robotic microfocuser designed for observatory-class telescopes and astrographs that require a wide free aperture, such as the Takahashi FSQ-106. This focuser features a 102 mm free aperture, 35 mm of draw tube travel, and can support payloads up to 10 kg. It offers an impressive focusing resolution of 0.04 microns per step, making it ideal for precise astrophotography and demanding imaging setups. The ESATTO 4" includes a USB-C port for computer control, WiFi connectivity for wireless operation with the Virtual HandPad app, and an ARCO port for direct integration with a camera rotator. Its low-profile design, just 65 mm thick (91 mm with the internal flange), ensures compatibility with telescopes that have limited backfocus.

Main Features

• Crayford-style focuser with 40 ball bearings for high load capacity and no flexure

• 102 mm free aperture and 35 mm draw tube travel

• Low-profile design with only 65 mm thickness (91 mm with internal flange)

• 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

• Motor-powered for automated focusing

• Weight: 2050 g

Specifications

Focusing accuracy: 0.04 microns per step
Free aperture: 102 mm
Draw tube travel: 35 mm
Load capacity: 10 kg
Axle bearings: Ball bearing mounted
Controllable via PC: Yes
Motor-powered: Yes
Series: ESATTO
Weight: 2050 g
Height: 94 mm
Width: 89 mm
Length: 182 mm
Type: Micro Focuser
Build type: Focuser