PrimaLuceLab ESATTO 3" Robotic Microfocuser - PLLEST3
| Article number: | PLLEST3 |
| Availability: | More on the Way to us |
| Delivery time: | More on the Way to Us |
The PrimaLuceLab ESATTO 3″ is a high-precision, motorized focuser built for serious astrophotography systems. Designed for large refractors, Ritchey-Chretien, or other telescopes with demanding optical trains, it provides robust performance, smooth motion, and advanced remote control capabilities.
Key Features
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Large Free Aperture
Offers a 76 mm (3″) clear aperture, accommodating heavy cameras, filter wheels, off-axis guiders, adaptive-optics gear, and large reducers or correctors. -
High Load Capacity
Built with a Crayford-style mechanism and 28 ball bearings, the ESATTO 3″ supports up to 8 kg of payload with minimal flexure. -
Long, Fine Travel
Provides 25 mm of draw-tube travel with ultra-fine resolution: 0.04 microns per step, enabling precise autofocus routines like V-curves. -
Compact, Low-Profile Design
The focuser body is only ~77 mm thick, keeping your imaging train compact while still offering generous travel. -
Integrated Connectivity
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USB-C Port: Reliable digital connection to your Windows computer or EAGLE controller.
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Wi-Fi Control: Built-in Wi-Fi lets you control the focuser via PrimaLuceLab’s “Virtual HandPad” app from your smartphone or tablet.
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Support through ASCOM drivers and PrimaLuceLab’s PLAY software for full automation.
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Camera & Telescope Mounting
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Drawtube features an M81 × 0.75 male thread, allowing secure attachment of DSLR, mirrorless, or cooled astronomy cameras.
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Supports optional threaded adapters with stop ring so you can fix camera orientation precisely.
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ARCO Port: A dedicated port lets you connect PrimaLuceLab’s ARCO rotator directly — no extra USB or 12 V cables needed.
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