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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 ARCO 3" Robotic rotator

PrimaLuceLab ARCO 3" Robotic rotator

by PrimaLuceLab
SKU PLL-PLLARCO3
$1,295.00 - $1,295.00
$1,295.00
$1,295.00 - $1,295.00
$1,295.00
Price Match Policy!
  • 3-inch class robotic camera rotator and field de-rotator
  • Integrates directly with ESATTO or SESTO SENSO 2/3 units
  • Single-cable connection for power and data
  • Enables long-exposure astrophotography on alt-azimuth mounts
  • Controlled via PLAY software, Windows PC, or WiFi-enabled devices
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • PrimaLuceLab ARCO 3" Robotic Rotator

    The PrimaLuceLab ARCO 3" Robotic Rotator provides high-resolution, remotely controlled camera rotation and field de-rotation for advanced astrophotography. Designed to integrate flawlessly into the PrimaLuceLab ecosystem, it connects to an ESATTO focuser or SESTO SENSO 2/3 motor with a single cable, eliminating the need for separate power and data lines. This design enables precise framing adjustments on equatorial mounts and allows for long-exposure imaging on alt-azimuth systems by actively correcting for field rotation.

    Precise Remote Rotation for Equatorial and Alt-Az Mounts

    The ARCO 3" is engineered for two critical astrophotography tasks. When used with an equatorially mounted telescope, it allows you to rotate your camera to the perfect angle for framing celestial objects without ever touching the telescope, maintaining perfect alignment. For users with alt-azimuth mounts, ARCO functions as a field de-rotator, making long-exposure deep-sky imaging possible by precisely counteracting the field rotation inherent in the mount's motion.

    Seamless Integration with ESATTO and SESTO SENSO

    The ARCO 3" is not a standalone device; it is a dedicated component of the PrimaLuceLab ecosystem. It requires a connection to either an ESATTO robotic focuser or a SESTO SENSO 2/3 focusing motor to function. This integration is its greatest strength, as a single cable between the units provides all necessary power and data, dramatically simplifying cable management and reducing potential failure points in your imaging train.

    Low-Profile, No-Snag Design for Complex Imaging Trains

    Constructed from a single block of aluminum, the ARCO 3" features a slim, low-profile body with a large clear aperture. All mechanical and electronic components are housed internally, ensuring there are no protruding parts that could snag on cables or interfere with your mount or camera. This clean design is essential for maintaining clearance and reliability in complex, automated imaging setups.

    Unified Control Through PLAY Astrophotography Software

    Your entire PrimaLuceLab imaging system, including the ARCO 3" rotator, can be controlled from one central point. Whether you are using the EAGLE all-in-one computer, a standard Windows PC, or connecting via WiFi with a smartphone or tablet, the PLAY astrophotography software provides a unified interface. PLAY automatically detects connected devices like ESATTO and ARCO, giving you integrated control over focusing and rotation from a single application.

  • Do I need a separate power cable for the PrimaLuceLab ARCO 3" rotator?

    No. The ARCO 3" rotator is designed to draw both power and data through a single cable connected directly to a PrimaLuceLab ESATTO focuser or SESTO SENSO 2/3 focusing motor. This simplifies your cable management significantly.

    Can I use the ARCO 3" rotator as a standalone device with my own focuser?

    No, the ARCO 3" is not a standalone unit. It is an integral part of the PrimaLuceLab ecosystem and must be connected to an ESATTO or SESTO SENSO 2/3 to function. It cannot be controlled directly from a PC without one of these required devices.

    How does the ARCO 3" rotator help with my alt-azimuth telescope like a Celestron CPC?

    For alt-azimuth mounts, the PrimaLuceLab ARCO 3" functions as a field de-rotator. It precisely rotates your camera in the opposite direction of the field rotation caused by the mount's movement, allowing you to take long exposures of deep-sky objects without star trails.

    I have an ESATTO 3" focuser. What do I need to connect the ARCO 3" rotator?

    To connect the ARCO 3" to an ESATTO 3" focuser, you will need the optional PL3600458 adapter. This ensures a secure, flush mechanical connection, and you will use the included ARCO cable to link the two devices electronically.

    What is the benefit of using the ARCO 3" for imaging a large target like the Andromeda Galaxy (M31) on my equatorial mount?

    When imaging a large, elongated target like M31, framing is critical. The ARCO 3" rotator allows you to remotely adjust the camera's angle with high precision to perfectly align the galaxy with your sensor's long axis. This lets you capture the entire object in your field of view without having to physically loosen and rotate the camera, which could compromise your focus and alignment.

    How do I control the PrimaLuceLab ARCO 3" rotator remotely?

    The ARCO 3" is controlled through the device it's connected to (ESATTO or SESTO SENSO 2/3). You can use PrimaLuceLab's PLAY software on an EAGLE or any Windows computer. If your ESATTO or SESTO SENSO is connected to a WiFi network, you can also control rotation wirelessly from a smartphone or tablet.

  • PrimaLuceLab 1-Year Warranty