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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
PrimaLuceLab ESATTO 2" Focuser with ARCO 2" Rotator

PrimaLuceLab ESATTO 2" Focuser with ARCO 2" Rotator

by PrimaLuceLab
SKU PLLEST2ARCO2
$1,419.00 - $1,419.00
$1,419.00
$1,419.00 - $1,419.00
$1,419.00
Price Match Policy!
  • Combines robotic focuser and high-precision rotator in one unit
  • Low-profile design for minimal back focus consumption
  • Single-cable connection between units for simplified wiring
  • ASCOM and native PLAY software compatible for flexible control
  • Functions as a camera rotator for framing and a field de-rotator for alt-az mounts
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • ESATTO 2" Focuser with ARCO 2" Rotator

    This bundle combines the PrimaLuceLab ESATTO 2" robotic focuser and the ARCO 2" rotator into a single, compact unit for complete remote control of your imaging train. Engineered to work together seamlessly, this system provides both high-precision focusing and arc-second resolution rotation without the cable management complexity of separate components. The integrated design simplifies your setup, requiring only a single USB cable to the ESATTO for control and power, making it a streamlined solution for automated astrophotography.

    Integrated Focus and Rotation: The ESATTO and ARCO System

    By including the necessary adapter, this bundle creates a rigid, low-profile focusing and rotation assembly. This integration is designed to minimize the back focus used in your optical train while providing the robust support needed for modern imaging cameras. The two devices communicate through a short link cable, meaning you only need to connect the ESATTO focuser to your EAGLE or Windows computer to command both focus and rotation, dramatically simplifying cable routing at the telescope.

    Robotic Focusing Control with the ESATTO 2"

    The ESATTO 2" is a new-generation robotic focuser with an integrated motor and advanced electronics, eliminating the need for an external controller. It offers exceptional load capacity and precise draw tube travel, ensuring no slippage even with heavy camera and filter wheel combinations. You can control the ESATTO directly via USB or wirelessly using the Virtual HandPad on a smartphone or tablet, giving you flexible and reliable remote focusing for any setup.

    Arc-Second Precision with the ARCO 2" Camera Rotator

    The ARCO 2" rotator delivers incredible rotational accuracy, with a resolution of one arc-second per step. This level of precision makes it a superior tool for both perfectly framing your deep-sky targets and for acting as a field de-rotator when used with an alt-azimuth mount. Its slim profile adds minimal thickness to the imaging train, preserving precious back focus for other accessories like off-axis guiders or filter wheels.

    Unified Telescope Control with ASCOM and PLAY Software

    Flexibility in control is central to the ESATTO and ARCO system. Both devices include ASCOM drivers, ensuring full compatibility with third-party astrophotography software for Windows, such as N.I.N.A., Sequence Generator Pro, or Maxim DL. For an even more integrated experience, you can use PrimaLuceLab's PLAY software, which is designed to control all their devices, along with your camera and mount, from a single, intuitive interface.

  • What is the main advantage of the ESATTO 2" and ARCO 2" bundle over separate components?

    The primary advantage is seamless integration and simplified cabling. The ESATTO and ARCO are designed to work as a single unit, requiring only one USB and power connection to the ESATTO focuser, which then controls and powers the ARCO rotator. This reduces cable clutter and potential snag points at the telescope.

    Can I control the ESATTO 2" and ARCO 2" with software like N.I.N.A. or Sequence Generator Pro?

    Yes. PrimaLuceLab provides ASCOM drivers for both the ESATTO focuser and ARCO rotator. This allows you to control them using any Windows-based astrophotography software that supports the ASCOM standard for focusers and rotators.

    How does the ARCO 2" rotator work as a field de-rotator with the ESATTO 2" focuser?

    When used with a telescope on an alt-azimuth mount, the sky appears to rotate in the eyepiece over time. The ARCO 2" can be commanded by software to precisely counter-rotate the camera at the sidereal rate, effectively freezing the field of view. This allows for long-exposure astrophotography without star trailing, a task typically reserved for equatorial mounts.

    What is the PLAY software and how does it control the ESATTO and ARCO system?

    PLAY is PrimaLuceLab's proprietary astrophotography software designed to create a unified ecosystem for all their hardware. It allows you to control the ESATTO focuser, ARCO rotator, cameras, and mounts from a single application, simplifying the process of setting up and executing an imaging session.

    If I use the ESATTO and ARCO bundle with my Celestron SCT for EAA, how does the de-rotation feature help?

    Many Celestron SCTs are on alt-azimuth mounts, which are convenient for visual use but introduce field rotation during exposures. For Electronically Assisted Astronomy (EAA), where you stack many short exposures, this rotation will blur the edges of the image. The ARCO's de-rotation function corrects for this, allowing you to create sharper, longer-duration stacked images of objects like the Hercules Cluster (M13).

    I want to image the Rosette Nebula (NGC 2244) and get the perfect framing. How does the ARCO rotator in this bundle help?

    The Rosette Nebula is a large object that often requires precise composition to fit well within the camera's field of view. The ARCO rotator allows you to make fine, remote adjustments to the camera's orientation without physically touching the telescope. You can dial in the exact angle needed to perfectly frame the nebula and its associated star cluster, ensuring a professional-looking final image.

  • PrimaLuceLab 1-Year Warranty