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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.
PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2"

PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2"

by PrimaLuceLab
SKU PLL-PL3600227
$95.00 - $95.00
$95.00
$95.00 - $95.00
$95.00
Price Match Policy!
  • Adapts ESATTO 2" M56 Male Thread to M57 Female Thread
  • Connects M57x0.75 Threaded Cameras and Accessories
  • Integrated Stop Ring for Precise Rotational Framing
  • Designed Specifically for the PrimaLuceLab ESATTO 2" Focuser
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2"

    The PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2" provides a robust, threaded connection between the ESATTO 2" robotic focuser and any camera or accessory with an M57x0.75 female thread. This component is essential for integrating a wide range of imaging equipment into the PrimaLuceLab ecosystem. It includes an independent stop ring, allowing you to precisely set the rotation of your camera for perfect framing of celestial targets.

    Secure M56 to M57 Connection for ESATTO 2"

    This adapter is engineered to solve a critical connection need for owners of the ESATTO 2" focuser. It directly threads onto the focuser's M56 draw tube, converting it to a standard M57 female thread. This allows you to create a secure, flexure-free imaging train with accessories that use the M57 standard, eliminating the potential for tilt or sag that can occur with compression fittings.

    The Stop Ring for Precise Camera Alignment

    Beyond simple adaptation, this unit features an integrated M57 stop ring. This mechanism allows you to lock your camera's orientation at any angle. After threading your camera on, you can loosen the stop ring, rotate the camera to achieve the ideal composition for your target, and then tighten the ring to fix it firmly in place. This is invaluable for framing nebulae or aligning with the orientation of a galaxy without rotating your entire optical tube.

  • What is the primary purpose of the PrimaLuceLab M56 to M57 Adapter?

    This adapter is designed to connect cameras and accessories that have a female M57x0.75 thread to the male M56 thread on the draw tube of a PrimaLuceLab ESATTO 2" robotic focuser. It creates a secure, all-threaded connection.

    How does the stop ring on the ESATTO 2" adapter improve my astrophotography?

    The stop ring allows for precise rotational framing. You can thread your camera on, loosen the ring to rotate the camera to the perfect orientation for your target—for example, fitting the entire Andromeda Galaxy (M31) in the frame—and then lock it down. This prevents you from having to rotate your entire telescope or diagonal.

    Is this adapter compatible with any focuser other than the ESATTO 2"?

    No, this adapter is specifically designed with an M56 male thread to fit the PrimaLuceLab ESATTO 2" focuser. It will not work with focusers from other brands that do not use this specific thread size.

    Can I use this PrimaLuceLab adapter to frame a target like the Horsehead Nebula (Barnard 33) vertically in my camera sensor?

    Yes, absolutely. The stop ring is perfect for this scenario. You can precisely rotate your camera to align its longest sensor axis with the nebula's orientation and then lock the position with the stop ring, ensuring optimal composition for your image.

    Will this adapter work with a camera that has a standard 1.25" or 2" nosepiece?

    No. This adapter creates a female M57 thread. It is intended for cameras or accessories that have a corresponding male M57 thread. For accessories with a 2" nosepiece, you would need a different adapter, such as PrimaLuceLab's 2" visual back.

    Does the PrimaLuceLab M56 to M57 adapter add significant length to the optical path?

    The adapter is designed to be as thin as possible while maintaining structural rigidity. While it does add a small amount of optical path length, it is a low-profile solution intended to minimize impact on back focus requirements. Always confirm you have sufficient back focus available in your imaging train.

  • PrimaLuceLab 1-Year Warranty