ARCO 3" Camera Rotator and Field De-Rotator

ARCO 3" Camera Rotator and Field De-Rotator

Description:

ARCO 3" is the larger version of PrimaLuceLab’s high-resolution camera rotator, offering an exceptional precision of 1 arcsecond per step. Designed for astrophotographers demanding the highest level of accuracy, ARCO 3" provides both camera rotation and field de-rotation functionalities in a compact, robust housing.

With only 23 mm thickness and a wide 76.3 mm clear aperture, ARCO 3" integrates seamlessly into any optical train. Thanks to its dedicated connection to ESATTO or SESTO SENSO 2 systems, it operates without the need for additional USB or 12V power cables. All connections and controls are managed through a single short cable.

ARCO 3" is fully compatible with PrimaLuceLab’s PLAY astrophotography software, allowing precise control of camera rotation and de-rotation, as well as full telescope configuration using ASCOM-compatible mounts. The dedicated ASCOM driver also supports third-party software integration.

Constructed with a precision-machined aluminum case, ARCO 3" supports heavy cameras and accessories without introducing flexure. Optional adapters allow seamless connection to a variety of focusers and optical components, including all M81 accessories with stop ring.

It can be easily adapted to ESATTO 3" and 4" focusers using the PL3600458 and PL3600459 adapters. For setups with SESTO SENSO 2, optional adapters are available for M63x1 and M86x1 threads. Additionally, ARCO 3" supports a wide range of M-thread adapters to connect with T2, M48, M54, M57, M68, M72, and 2” visual accessories.

Important: ARCO must be used with an ESATTO focuser or a SESTO SENSO 2 motor. It cannot operate as a standalone unit.

Technical specifications:

• Type: Camera rotator and field de-rotator

• Resolution: 1 arcsecond per step

• Body thickness: 23 mm

• Clear aperture: 76.3 mm

• Connection: Direct via cable to ESATTO or SESTO SENSO 2

• Housing: Full aluminum, no protruding parts

• Control: Via PLAY software or ASCOM-compatible third-party apps

• Compatibility: M81 adapters with stop ring

• Weight: 1060 g

• Power: Supplied through ESATTO or SESTO SENSO 2

• Software support: PLAY, ASCOM

• Optional adapters for: T2, M48, M54, M57, M68, M72, 2" accessories

• Adapter references: PL3600458 (ESATTO 3"), PL3600459 (ESATTO 4"), PL3600465 (M63x1), PL3600463 (M86x1)

Additional information:
ARCO 3" is designed for users who require ultra-precise camera rotation or field de-rotation, whether using equatorial or alt-azimuth mounts. When installed with the ESATTO or SESTO SENSO 2 control system, it simplifies cable management and mechanical integration. Its ASCOM compatibility and support in the PLAY software suite make it a powerful addition for any advanced imaging setup.

Compatible with all the M81 adapters.

Since ARCO 3” has the same M81x1 male thread found on the camera side of the ESATTO 3” draw tube, you can use any of the optional M81 adapters with stop ring in order to connect cameras or accessories you use for your setup:

• PL3600282 adapter to connect cameras or accessories with T2 thread
• PL3600277 adapter to connect cameras or accessories with M48 thread
• PL3600275 adapter to connect cameras or accessories with M54 thread
• PL3600279 adapter to connect accessories with M57 thread
• PL3600262 adapter to connect cameras or accessories with M68 thread
• PL3600289 adapter to connect cameras or accessories with M68 male thread
• PL3600272 adapter to connect cameras or accessories with M72 thread
• PL3600252 adapter to connect cameras or accessories with M72 male thread
• PL8410002 2” visual back to connect cameras or accessories with 2” noise piece

Low profile and no protruding parts.

Thanks to its specially designed full aluminum case, all of the mechanical and electrical parts are neatly contained in the ARCO chassis. There are no protruding parts that may touch the camera, accessories or your telescope. The case thickness of the ARCO 3" is only 23 millimetres.

Please note: in order to be used, ARCO rotator has to be connected to ESATTO microfocuser or SESTO SENSO 2 focusing motor. ARCO is not designed as a stand alone unit.