ESATTO 4 focuser with ARCO 3 rotator (PrimaLuceLab, SKU: PLLEST4ARCO3) PrimaLuceLab opinie

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The ESATTO 4" focuser with ARCO 3" rotator (PrimaLuceLab, SKU: PLLEST4ARCO3 ) is a complete, remote-controlled focusing and frame rotation package for demanding astrophotography setups. The kit combines the large, high-lift ESATTO 4" focuser with the precise ARCO 3" rotator via a dedicated adapter, providing
only 93 mm of total thickness with 76.3 mm of free aperture . With one USB-C cable you control the focus and camera angle simultaneously, and full integration with PLAY software and ASCOM drivers makes it easy to automate sessions.

The most important features of the set

• ESATTO 4" focuser — 102.2 mm free focuser aperture, 35 mm stroke, 0.04 µm/step resolution, 10 kg payload, 65 mm body thickness
• ARCO 3" rotator - 360° rotation, resolution 1 arcsec/step, thickness 23 mm, free aperture 76.3 mm
• total thickness of the package (focuser + rotator + adapter) only 93 mm - ideal for short back-focus astro-graphs
• Crayford design with 40 ball bearings - zero deflection even with a heavy camera + filters set
• built-in Wi-Fi (Virtual HandPad), reversible USB-C port, LEDs with dimming option
• rotator power supply and control without additional cables - ARCO draws power from the ESATTO port
• full integration with PLAY, ASCOM and low-level PrimaLuceLab SDKs

Set components

• ESATTO 4" lift
• ARCO 3" rotator
• ESATTO 4" ↔ ARCO 3" adapter
• USB-C ↔ USB-A cable
• ESATTO ↔ ARCO connecting cable
• mounting screws and instructions

Technical parameters

• free aperture of the package: 76.3 mm
• total thickness (focuser + rotator + adapter): 93 mm
• lift stroke: 35 mm
• focuser resolution: 0.04 µm/step
• load capacity: 10 kg
• rotator resolution: 1 arcsec/step
• rotation range: 0–360° (continuous)
• focuser weight: 2.05 kg
• interfaces: USB-C, Wi-Fi 2.4 GHz, ARCO port
• Power supply: 12 V DC (via ESATTO) / ARCO powered via ESATTO port
• manufacturer: PrimaLuceLab – Italy

The ESATTO 4" + ARCO 3" set is an ideal solution for observatories and advanced astrophotographers who require maximum focusing precision and fast, repeatable object framing while maintaining a short back-focus and high load capacity.