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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.
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II
Baader Auxillary-Ring for Adaptation of MaxBright II

Baader Auxillary-Ring for Adaptation of MaxBright II

by Baader Planetarium
SKU BAA-2458272
$14.00 - $14.00
$14.00
$14.00 - $14.00
$14.00
Price Match Policy!
  • Creates the shortest possible connection for a MaxBright II Binoviewer
  • Designed for direct attachment to any Baader T-2 star diagonal
  • Prevents unintended rotation and accidental detachment of the binoviewer
  • Functions as a slip ring to allow for interpupillary distance adjustment
  • Requires Baader T-2 Locking Ring #2458271 for full functionality (sold separately)
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Baader Auxillary-Ring for Adaptation of MaxBright II

    The Baader Auxillary-Ring is a dedicated component engineered to create the most compact, rigid, and secure connection between a MaxBright II Binoviewer and any Baader T-2 star diagonal. This ring system solves the common issues of binoviewer rotation and instability by providing a direct, locked-in attachment that prevents any unintended movement during observation or eyepiece changes.

    Secure, Low-Profile MaxBright II to T-2 Diagonal Adaptation

    This ring enables the shortest possible adaptation of the MaxBright II directly onto a T-2 prism or mirror diagonal. Its primary function is to act as a slip ring, placed between the binoviewer body and the required T-2 locking ring. This clever design allows you to securely lock the binoviewer's rotational position while still permitting smooth adjustment of the interpupillary distance, ensuring both mechanical stability and user comfort.

    Required Component: Baader T-2 Locking Ring (#2458271)

    To achieve the secure, rotation-proof connection, this Auxillary-Ring must be used in conjunction with the Baader T-2 Locking Ring (#2458271), which is sold separately. The locking ring threads onto the binoviewer's T-2 connection and is tightened against the auxillary ring, creating a firm lock. The locking ring's handle can be repositioned into one of three threaded holes, spaced 120° apart, to ensure it never obstructs your view or access to the eyepieces.

  • What is the purpose of the Baader Auxillary-Ring for the MaxBright II?

    The Baader Auxillary-Ring is designed to provide the shortest and most secure connection possible between a Baader MaxBright II Binoviewer and a Baader T-2 star diagonal. It prevents the binoviewer from rotating or accidentally unscrewing during use.

    Do I need any other parts to use this Auxillary-Ring with my MaxBright II?

    Yes, this part is not standalone. You must use it with the Baader T-2 Locking Ring (#2458271), which is sold separately. The Auxillary-Ring acts as a slip ring, and the Locking Ring provides the tension to lock the binoviewer in place.

    How does this ring system prevent my MaxBright II from rotating on my T-2 diagonal?

    The Auxillary-Ring sits between the binoviewer and the separate locking ring. Once you thread the binoviewer onto your T-2 diagonal, you tighten the locking ring against the Auxillary-Ring. This creates firm pressure that locks the entire assembly, preventing any rotation while still allowing interpupillary distance adjustments.

    Can I still adjust the interpupillary distance on my MaxBright II with this ring installed?

    Yes. The Auxillary-Ring is specifically designed to function as a slip ring. This means that even when the connection to the diagonal is locked tight against rotation, the mechanism for adjusting the distance between the eyepieces on the MaxBright II remains fully functional.

    Will the Baader Auxillary-Ring work with non-Baader diagonals?

    This ring is specifically designed for the Baader ecosystem, ensuring a perfect fit between the MaxBright II Binoviewer and Baader's T-2 star diagonals (both prism and mirror types). Compatibility with third-party diagonals is not guaranteed, as thread depths and tolerances can vary.

    How do I install the Baader Auxillary-Ring system on my MaxBright II and T-2 diagonal?

    First, ensure you have both this Auxillary-Ring and the required Baader T-2 Locking Ring (#2458271).

    • Remove any existing counter nut or dovetail ring from the binoviewer's T-2 thread.
    • Thread the Locking Ring onto the binoviewer's male T-2 thread, but don't tighten it.
    • Place the Auxillary-Ring between the Locking Ring and the binoviewer body, with the raised surface facing the binoviewer.
    • Screw the entire assembly onto your Baader T-2 diagonal until it's snug.
    • Rotate the binoviewer to your desired orientation, then tighten the Locking Ring firmly against the Auxillary-Ring to lock it in place.
  • Net weight (kg) 0.01
    Type of Adapter Same-Thread Adapter, Variable Focusing
    Usage for Adaptation of MaxBright II
    Outer Connection (lens sided) M34
  • Baader Planetarium Warranty