PrimaLuceLab PLUS Tube Rings

These rings are specifically designed for telescopes with a 134mm outer diameter. Before purchasing, please measure your telescope tube precisely, as even a few millimeters of difference can prevent the rings from closing securely.

Yes, the rings are designed to be compatible with both Vixen and Losmandy style plates. The integrated holes and slots provide the flexibility to attach either system depending on your existing mount and setup requirements.

Absolutely. Because they are CNC machined from solid aluminum blocks, they offer superior rigidity compared to cast metal rings. This mechanical stability is essential for minimizing flexure during long-exposure astrophotography.

Installation is straightforward and typically requires only standard hex keys to tighten the bolts. The rings are designed to clamp securely around the tube, but ensure you have a flat surface or the appropriate mounting plate ready to attach them to your telescope mount.

The modular design allows you to easily attach accessories like guide rings or counterweight systems directly to the rings. By distributing the weight of your accessories across the tube rings rather than just the focuser or the mounting plate, you can achieve a much better center of gravity for your rig.