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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.
PrimaLuceLab 140mm PLUS Support Rings

PrimaLuceLab 140mm PLUS Support Rings

by PrimaLuceLab
SKU PLL-PLLANSU140P
$305.00 - $305.00
$305.00
$305.00 - $305.00
$305.00
Price Match Policy!
  • Securely holds optical tubes with a 140mm diameter
  • CNC machined from a solid aluminum block for maximum rigidity
  • Part of the modular PrimaLuceLab PLUS (Prima Luce Universal System)
  • Hard-anodized finish protects against scratches and oxidation
  • Weighs 0.7 kg as a pair, ensuring a solid, flex-free connection
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • PrimaLuceLab 140mm PLUS Support Rings

    The PrimaLuceLab 140mm PLUS Support Rings provide a rigid, flex-free mounting solution for optical tubes with a 140mm diameter. Machined from a single block of aluminum, this 0.7 kg pair of rings forms the core of a completely modular instrument setup, connecting seamlessly with the entire PrimaLuceLab PLUS ecosystem of plates, clamps, and accessories.

    140mm CNC Machined Rings: A Rigid Foundation from Solid Aluminum

    Unlike cast or bent-metal rings, each PrimaLuceLab PLUS ring is high-precision CNC machined from a solid block of aluminum. This manufacturing process guarantees perfect circularity and mechanical strength, eliminating the flexure that can ruin long exposures. The rings are then sandblasted for a smooth finish and hard-anodized to increase surface durability and protect against oxidation.

    The PLUS Advantage: Total Modularity for Your 140mm OTA

    These rings are the foundation of the PrimaLuceLab PLUS system, designed for maximum versatility. With a pattern of threaded holes and slots, you can attach PLUS dovetail plates to both the top and bottom of your telescope simultaneously. This allows you to mount the scope to your equatorial mount while adding a guide scope, EAGLE computer, or other accessories on top, creating a rigid, integrated imaging platform.

    • Dual Mounting: Attach Vixen or Losmandy style plates above and below the optical tube for mounting and accessories.
    • Broad Compatibility: Central slots allow you to attach plates and accessories from other manufacturers, not just those in the PLUS system.
    • System Rigidity: Connecting PLUS elements together creates a single, solid mechanical structure, crucial for stable autoguiding and sharp images.

  • What makes the PrimaLuceLab 140mm PLUS Support Rings better than generic rings?

    The key differences are in the manufacturing and system integration. PrimaLuceLab PLUS rings are CNC machined from a solid block of aluminum, providing superior strength and preventing flexure compared to cast or bent rings. They are also an integral part of the PLUS modular system, featuring a versatile pattern of holes and slots for rigidly attaching dovetail plates, guide rings, and other accessories.

    Can I use the 140mm PLUS Support Rings with dovetail plates I already own?

    Yes. While the rings are designed for seamless integration with PrimaLuceLab's own PLUS plates, they also feature central slots that allow you to attach plates from other brands using standard screws. This ensures you can integrate these high-quality rings into your existing setup.

    How do the 140mm PLUS rings help me add a guide scope to my 140mm refractor?

    The 140mm PLUS rings allow you to attach a PLUS dovetail plate to the top of the rings. You can then mount PLUS guide rings directly to that top plate, providing a secure, adjustable platform for your guide scope. This creates a single, rigid assembly with your main telescope, which is critical for accurate autoguiding.

    I have a Sky-Watcher mount with a Losmandy-style saddle. How do the 140mm PLUS rings connect?

    You would attach a Losmandy-style PLUS dovetail plate (sold separately) to the bottom of the 140mm PLUS rings. The plate bolts directly to the rings, and the entire assembly then slides securely into your mount's Losmandy-style saddle clamp.

    Why are the PrimaLuceLab 140mm PLUS rings hard-anodized?

    Hard anodizing is an electrochemical process that creates a much harder, thicker, and more durable protective layer on the aluminum than standard anodizing. This makes the rings highly resistant to scratches, wear, and corrosion, ensuring they maintain their precision fit and finish even with heavy field use.

    What is the main benefit of the PLUS system for the 140mm rings?

    The main benefit is modularity and guaranteed rigidity. Every component in the PLUS system is designed to connect perfectly with others, eliminating potential alignment issues or flex points. By using the 140mm rings with other PLUS components, you build a mechanically solid imaging train from the mount saddle to the guide scope.

  • Internal Diameter 140mm
    Weight 0.7 kg
    Material CNC Machined Aluminum
    Finish Sandblasted, Hard-Anodized
    System PrimaLuceLab PLUS (Prima Luce Universal System)

    • 140mm PLUS Support Rings

      × 1 (Pair)

  • PrimaLuceLab 1-Year Warranty