PrimaLuceLab ESATTO 2" Low Profile Robotic Focuser - PLLEST2LP

The PrimaLuceLab ESATTO 2″ LP is a highly compact, motorized focuser engineered for telescopes with limited back-focus, especially optimized for systems like the Celestron EdgeHD 8″. Despite its slim profile, it offers advanced features and precision control, making it ideal for demanding astrophotography setups.

Key Features

• Ultra-Low Profile: The focuser body is only 32 mm thick, allowing installation in tight optical systems without interfering with mirror lock or focus knobs. 

• Large Clear Aperture: Provides a 50.9 mm free aperture, giving ample clearance for large cameras, filter wheels, and other imaging accessories while minimizing vignetting. 

• Smooth Motion & High Load Capacity: Uses a Crayford-style design with 18 ball bearings to deliver stable motion and support up to 5 kg of imaging gear. 

• Precision Travel: Features 10 mm of focuser travel with an extremely fine 0.03 microns per step resolution — ideal for precise autofocus routines. 

• Connectivity:

  • USB-C port for direct connection to a PC or Quiet EAGLE controller. 

  • Wi-Fi capable — can be controlled remotely via a smartphone or tablet using PrimaLuceLab’s Virtual HandPad app.

  • 12 V power input, temperature probe port, and dimmable status LEDs for convenient operation and monitoring. 

• Rotator Support: Includes a dedicated ARCO port that lets you connect a PrimaLuceLab ARCO rotator directly — enabling remote camera rotation or field de-rotation with minimal cabling. 

• Compact, Clever Design: Designed specifically to fit under tight constraints — when paired with the ARCO 2″ rotator, the combined unit maintains a total thickness of just 54.2 mm, all while preserving that 50.9 mm clear aperture. 

• Software Integration: Fully compatible with PLAY, PrimaLuceLab’s astrophotography software, and supports ASCOM drivers, allowing seamless integration into automated imaging workflows. 

• Lightweight: Weighs approximately 730 g, helping to minimize added load on your telescope. 

Ideal Use Cases

• EdgeHD and SC Telescopes: Especially helpful for Celestron EdgeHD 8″ (and similar SCTs) where back-focus is at a premium. 

• Imaging Rigs with Heavy Payloads: Supports large cameras + filter wheels while maintaining stable, backlash-free focus.

• Remote & Automated Observing: With Wi-Fi and ASCOM control, you can focus your telescope from a warm control station or via scripting.

• Compact and Clean Setups: Its low-profile body helps maintain a clean, compact imaging train, both mechanically and optically.