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PrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3"

PrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3"

by PrimaLuceLab
SKU PLL-PL3600289
CA$119.00 - CA$119.00
CA$119.00
CA$119.00 - CA$119.00
CA$119.00
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  • Connects M68x1 Male Threaded Accessories
  • Attaches to M81 Female Thread on Focuser/Rotator
  • Compatible with ESATTO 3" Focuser
  • Compatible with ARCO 3" Rotator
  • Solid, All-Metal Construction
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • PrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3"

    The PrimaLuceLab Adapter from M81 to M68 Female creates a direct, secure threaded connection between your ESATTO 3" robotic focuser or ARCO 3" rotator and any camera or accessory that uses a male M68x1 thread. This adapter is the essential component for integrating popular M68-format accessories, like field flatteners or off-axis guiders, into your PrimaLuceLab imaging system. It ensures a rigid, non-flexing link in your optical train, critical for sharp, consistent imaging results.

    Secure M81 to M68 Connection for ESATTO 3" & ARCO 3"

    This adapter threads directly onto the M81 female thread of the ESATTO 3" focuser's draw tube or the ARCO 3" rotator. On the other side, it presents a female M68x1 thread, ready to accept your camera, reducer, or other threaded accessory. This single-piece solution eliminates potential points of flexure or misalignment that can occur with multi-part adapters.

    Maintain a Rigid Imaging Train for M68 Accessories

    For astrophotography, a rigid optical train is non-negotiable. Using a direct threaded connection like this M81 to M68 adapter prevents the sag and tilt common with slip-fit or compression ring adapters, especially when using heavier cameras or filter wheels. This solid mechanical joint ensures your entire imaging system remains perfectly collinear with the telescope's optical axis from the focuser through to the sensor.

  • What is the primary function of the PrimaLuceLab M81 to M68 Adapter?

    This adapter's primary function is to convert the native M81 female thread on a PrimaLuceLab ESATTO 3" focuser or ARCO 3" rotator to a standard M68 female thread. This allows you to securely attach cameras, field flatteners, reducers, and other accessories that use a male M68x1 thread.

    Which PrimaLuceLab devices is the M81 to M68 Adapter compatible with?

    This adapter is specifically designed for PrimaLuceLab's 3-inch ecosystem. It is fully compatible with:

    • ESATTO 3" Robotic Microfocuser
    • ARCO 3" Robotic Rotator

    How do I install this M81 to M68 adapter on my ESATTO 3" focuser?

    Installation is straightforward. You simply thread the adapter directly onto the M81 thread located on the end of the ESATTO 3" focuser's draw tube until it is snug. Your M68-threaded accessory can then be attached to the other side of the adapter.

    Can I use this adapter to connect a camera with a 2" nosepiece to my ESATTO 3"?

    No, this adapter is for threaded connections only. To connect an accessory with a 2" nosepiece, you would need the dedicated PrimaLuceLab 2" Visual Back for ESATTO 3", which provides a compression ring holder instead of an M68 thread.

    My imaging train uses an M68 off-axis guider. Is this the right adapter for my PrimaLuceLab ARCO 3" rotator?

    Yes, this is the correct adapter. It allows you to securely attach your M68-threaded off-axis guider to the ARCO 3" rotator, ensuring a solid, repeatable connection that maintains optical alignment as the rotator turns.

    Why choose this threaded adapter over a universal slip-fit type for my ESATTO 3"?

    A threaded connection provides superior rigidity and prevents tilt. For imaging with heavy cameras, filter wheels, or off-axis guiders, a threaded connection is essential to eliminate flexure that can ruin long exposures. This PrimaLuceLab adapter ensures your entire imaging train is securely locked to the focuser.

  • PrimaLuceLab 1-Year Warranty