{"title":"PrimaLuceLab Tube Rings","description":"\u003cp\u003ePrimaLuceLab tube rings are PLUS support rings that hold the telescope tube securely on a dovetail plate. They come in many inside diameters, from 80mm, 85mm and 90mm for guide scopes and small refractors up to 168mm, 180mm and 235mm for larger refractors and reflectors.\u003c\/p\u003e\u003cp\u003eChoose the size that matches your tube's outside diameter. The rings work with PrimaLuceLab PLUS Vixen and Losmandy plates to build a rigid mounting.\u003c\/p\u003e","products":[{"product_id":"primalucelab-80mm-plus-support-rings","title":"PrimaLuceLab 80mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e80mm Internal Diameter for Compact Refractors and Telescopes\u003c\/li\u003e\n\u003cli\u003eCNC-Machined from a Solid Aluminum Block for Maximum Rigidity\u003c\/li\u003e\n\u003cli\u003ePart of the PLUS (Prima Luce Universal System) Ecosystem\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish for Durability and Scratch Resistance\u003c\/li\u003e\n\u003cli\u003eVersatile Threaded Holes and Slots for Attaching Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 80mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 80mm PLUS Support Rings provide a rigid, CNC-machined mounting foundation for optical tubes with an 80mm diameter, forming the core of the Prima Luce Universal System with a versatile matrix of threaded holes and slots for securely attaching accessories without flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e80mm Rings: CNC-Machined for a Zero-Flexure Foundation\u003c\/h3\u003e\n\u003cp\u003eUnlike cast or bent-metal rings that can introduce flexure into an imaging train, each PrimaLuceLab PLUS ring is precision-machined from a solid block of aluminum. This process ensures perfect roundness and a robust cross-section that will not bend or twist under the load of a telescope and guide system. The aluminum is then sandblasted for a smooth finish and hard-anodized to protect against scratches and corrosion, maintaining a secure connection for years of use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull Integration with the PrimaLuceLab PLUS System\u003c\/h3\u003e\n\u003cp\u003eThese 80mm rings are the fundamental building block of the PrimaLuceLab PLUS ecosystem. The system of threaded holes and slots allows for the direct, rigid attachment of other PLUS components, such as Vixen or Losmandy style dovetail plates, guide rings, and EAGLE control units. You can mount plates both above and below your optical tube, creating a solid, integrated structure that eliminates the instability of stacked adapters and accessory bars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Mounting Beyond the PLUS Ecosystem\u003c\/h3\u003e\n\u003cp\u003eWhile designed for seamless integration with the PLUS system, these rings are engineered for broad compatibility. A series of central slots allows you to attach plates and accessories from other manufacturers using standard screws. This makes the 80mm PLUS Support Rings a significant rigidity upgrade for any setup, even if you haven't adopted the full PrimaLuceLab system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 80mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope optical tube with an \u003cstrong\u003eouter diameter of 80mm\u003c\/strong\u003e. This commonly includes compact refractors with apertures from 60mm to 70mm, as well as various finder scopes and guide scopes that match this dimension.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 80mm PLUS Support Rings prevent flexure in my imaging setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFlexure is prevented by their construction. Each ring is \u003cstrong\u003eCNC-machined from a single block of aluminum\u003c\/strong\u003e, creating a solid, non-flexible component. The integrated system of threaded holes allows you to bolt accessories directly to the rings, creating a single rigid assembly rather than stacking multiple adapters which can shift or bend under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope using the PrimaLuceLab 80mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You can attach a PLUS dovetail plate to the top of the 80mm rings and then add PLUS guide rings to that plate. This creates an exceptionally stable platform for your guide scope, ensuring there is no differential movement between your main telescope and your autoguider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need other PLUS components to use these 80mm support rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, you can use them as a standalone upgrade. The central slots are designed to be compatible with standard screws, allowing you to attach most third-party Vixen or Losmandy plates. However, you will achieve the highest level of rigidity and modularity by using them with other PrimaLuceLab PLUS components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the PLUS system over standard mounting rings for my 60mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a 60mm refractor, standard rings typically only provide a way to attach the scope to a dovetail bar. The \u003cstrong\u003ePrimaLuceLab 80mm PLUS Support Rings\u003c\/strong\u003e transform your telescope into a modular platform. You can rigidly attach your EAGLE computer, a guide scope, and other accessories directly to the ring assembly, improving balance, stability, and cable management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a Losmandy or Vixen plate to the PrimaLuceLab 80mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can attach a PrimaLuceLab PLUS Vixen or Losmandy plate directly to the rings using the provided threaded holes for a secure, bolt-on connection. If you are using a plate from another brand, you can use the central slots on the rings with standard screws to affix your plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967883800861,"sku":"PLL-PLLANSU80P","price":209.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"primalucelab-85mm-plus-support-rings","title":"PrimaLuceLab 85mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 85mm Diameter Telescope Tubes\u003c\/li\u003e\n\u003cli\u003eHigh-Precision CNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eHard-Anodized for Durability and Corrosion Resistance\u003c\/li\u003e\n\u003cli\u003eFull Integration with the PrimaLuceLab PLUS System\u003c\/li\u003e\n\u003cli\u003eThreaded Holes and Slots for Mounting Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 85mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 85mm PLUS Support Rings offer a rigid, precision-engineered mounting foundation for telescopes with an approximate 85mm tube diameter, such as popular 70mm to 80mm class refractors. Machined from a single block of aluminum, these rings are the core of a stable and versatile astronomical setup, eliminating the flexure common in lesser mounting solutions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Support for 85mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eEach ring is CNC-machined from a solid block of high-grade aluminum, ensuring perfect roundness and structural integrity. The material is then sandblasted to create a smooth finish and hard-anodized to increase surface hardness and protect against oxidation. This manufacturing process results in a support system that is significantly more rigid than cast or bent-metal rings, which is critical for maintaining alignment during long-exposure astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated with the PLUS System for Total Modularity\u003c\/h3\u003e\n\u003cp\u003eThese 85mm rings are a central component of the Prima Luce Universal System (PLUS). The PLUS ecosystem is defined by a pattern of standardized threaded holes and slots that allow for direct, secure attachment of other PLUS components. You can bolt dovetail plates to both the top and bottom of the rings, add guide rings for a guide scope, or attach a dovetail clamp to mount a second instrument in parallel—all without the instability of stacked adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Compatibility Beyond the PLUS Ecosystem\u003c\/h3\u003e\n\u003cp\u003eWhile optimized for the PLUS system, PrimaLuceLab designed these rings for broad compatibility. A series of central slots allows you to fasten plates and accessories from other manufacturers using standard screws. This thoughtful design ensures you can integrate the superior rigidity of the 85mm PLUS rings into your existing setup, regardless of the brands you currently use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are the PrimaLuceLab 85mm PLUS Support Rings designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any optical tube with an outer diameter of approximately \u003cstrong\u003e85mm\u003c\/strong\u003e. This commonly includes many popular 70mm and 80mm refractor telescopes. It is always best to measure your telescope's tube diameter to ensure a proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system and how do these 85mm rings fit in?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PLUS system is PrimaLuceLab's modular ecosystem of plates, clamps, rings, and other accessories that share a common, pre-drilled hole pattern. The \u003cstrong\u003e85mm PLUS Support Rings\u003c\/strong\u003e act as a foundational component, allowing you to securely bolt other PLUS accessories directly to them, creating a solid, flex-free mechanical assembly for your imaging rig.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 85mm PLUS rings with a dovetail plate from another brand?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. In addition to the threaded holes for the PLUS system, the rings feature central slots that accommodate screws for attaching third-party dovetail plates or other accessories. This ensures you can benefit from the rigidity of the PLUS rings even if you haven't fully adopted the PLUS ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a guide scope to my 80mm refractor using the 85mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo mount a guide scope, you would first attach a PLUS dovetail plate (such as a Vixen or Losmandy style plate) to the top of the \u003cstrong\u003e85mm PLUS Support Rings\u003c\/strong\u003e. Then, you can attach PLUS guide rings directly to that top plate, providing a stable, adjustable platform for your guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the advantage of CNC-machined rings like the 85mm PLUS rings over cast rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCNC (Computer Numerical Control) machining\u003c\/strong\u003e creates parts from a solid block of aluminum with extremely high precision. This process results in rings that are stronger, more rigid, and have tighter tolerances than cast rings, which are made by pouring molten metal into a mold. For astrophotography, this superior rigidity is crucial for preventing mechanical flexure that can ruin long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics ZenithStar 73. What else do I need to mount it on a Celestron AVX mount using these 85mm rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter securing your ZenithStar 73 in the \u003cstrong\u003e85mm PLUS Support Rings\u003c\/strong\u003e, you will need to attach a PLUS Vixen-style dovetail plate to the bottom of the rings. The Celestron AVX mount uses a Vixen-style saddle, so this plate will allow you to securely mount the entire telescope assembly onto the mount head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Tube Diameter\u003c\/td\u003e\n\u003ctd\u003e85mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eCNC-machined from a single block of aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSandblasted and hard-anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting System\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e \u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967883833629,"sku":"PLL-PLLANSU85P","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-85mm-PLUS-support-rings__07402.1617396037.1280.1280.jpg?v=1684346425"},{"product_id":"primalucelab-90mm-plus-support-rings","title":"PrimaLuceLab 90mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 90mm Diameter Optical Tubes\u003c\/li\u003e\n\u003cli\u003ePart of the Modular PLUS System\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eWeight: 0.5 kg\u003c\/li\u003e\n\u003cli\u003eMultiple Threaded Holes and Slots for Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 90mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 90mm PLUS Support Rings provide a rigid mounting solution for optical tubes with a 90mm diameter, engineered from a solid block of CNC-machined aluminum. The complete set weighs just 0.5 kg, adding minimal weight while maximizing the mechanical stability of your entire telescope system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e90mm PLUS Rings: A Secure Foundation for Your Telescope\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for telescopes with an optical tube diameter of approximately 90mm, these rings serve as the core component for building a stable and versatile imaging rig. By providing a secure grip on the optical tube, they eliminate flexure that can ruin long exposures and allow for the precise attachment of other system components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: Universal Connectivity for 90mm Scopes\u003c\/h3\u003e\n\u003cp\u003eAs part of the Prima Luce Universal System (PLUS), these 90mm rings are more than just a tube holder; they are a central hub for accessories. The design incorporates a pattern of threaded holes, plain holes, and slots that allow for the direct attachment of PLUS dovetail plates, guide rings, and clamps to both the top and bottom of the rings. This modularity lets you easily mount guide scopes, control computers, or even a second telescope in parallel with maximum rigidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Aluminum at Just 0.5 kg\u003c\/h3\u003e\n\u003cp\u003eEach component is machined with high precision from a single block of aluminum, ensuring perfect fit and alignment. The aluminum is then sandblasted for a smooth finish and hard-anodized to increase durability and resistance to oxidation. This robust construction provides a rock-solid connection that weighs only 0.5 kg, preserving the balance of your mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 90mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e90mm\u003c\/strong\u003e. This includes many popular refractors, such as the Sky-Watcher Evostar 80ED, or telescopes with a 90mm dew shield diameter like the William Optics RedCat 71.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 90mm PLUS Support Rings improve my astrophotography setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThey provide a rigid, secure connection to the PrimaLuceLab PLUS system, allowing you to easily mount accessories. You can add guide scopes, control units like the ZWO ASIAIR, and dovetail plates on both the top and bottom of your telescope. This modularity creates a more stable and versatile imaging rig with clean cable management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope using the 90mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The rings feature threaded holes and slots compatible with \u003cstrong\u003ePLUS guide rings\u003c\/strong\u003e and \u003cstrong\u003edovetail clamps\u003c\/strong\u003e (sold separately). This allows you to attach a separate guide scope securely and keep it precisely aligned with your main telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the PrimaLuceLab 90mm PLUS Rings compatible with non-PLUS dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed for the PLUS ecosystem, the rings include a series of \u003cstrong\u003ecentral slots\u003c\/strong\u003e that allow you to attach plates and accessories from other brands using standard screws, ensuring broad compatibility with your existing equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Sky-Watcher Evostar 80ED (90mm tube). Can I use these rings to mount it on my Losmandy-style mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. You would attach the 90mm PLUS rings to your Evostar 80ED, and then bolt a Losmandy-style PLUS dovetail plate (sold separately) to the bottom of the rings. This provides a secure, rigid connection to your mount's saddle plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the 90mm PLUS Rings to add a ZWO ASIAIR to my William Optics RedCat 71?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe RedCat 71's dew shield is 90mm in diameter, making these rings a perfect fit. You can attach a small PLUS Vixen-style plate to the top of the rings, which provides an ideal platform for mounting the ASIAIR directly above the optical tube for a compact setup and clean cable routing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-machined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSandblasted and Hard-Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e90mm PLUS Support Rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967883899165,"sku":"PLL-PLLANSU90P","price":287.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-90mm-PLUS-support-rings__40476.1617396037.1280.1280.jpg?v=1684346427"},{"product_id":"primalucelab-95mm-plus-support-rings","title":"PrimaLuceLab 95mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eInternal Diameter: 95mm\u003c\/li\u003e\n\u003cli\u003eMaterial: CNC-machined aluminum\u003c\/li\u003e\n\u003cli\u003eFinish: Sandblasted and hard-anodized\u003c\/li\u003e\n\u003cli\u003eMounting System: PrimaLuceLab PLUS\u003c\/li\u003e\n\u003cli\u003eCompatible Telescopes: Takahashi FSQ85, FS-78, FC-100DF\/DL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 95mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 95mm PLUS Support Rings provide a rigid, CNC-machined mounting solution for telescopes with an optical tube diameter of approximately 95mm. Designed as the foundation of the PLUS modular system, these 95mm rings enable the secure attachment of plates, guide scopes, and other accessories above and below your 95mm refractor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for 95mm Refractors: Takahashi FSQ85 and FC-100 Compatibility\u003c\/h3\u003e\n\u003cp\u003eThese support rings are engineered to fit optical tubes with a 95mm diameter, making them a perfect match for premium refractors. They are specifically confirmed to be compatible with Takahashi telescopes such as the FSQ85, FS-78, FC-100DF, and FC-100DL, providing a secure and precise fit for these high-end instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: A Fully-Threaded 95mm Mounting Platform\u003c\/h3\u003e\n\u003cp\u003eAs part of the Prima Luce Universal System (PLUS), these 95mm rings are more than just a tube holder; they are a central component of a complete mechanical support system. The rings feature a pattern of threaded holes, slots, and countersinks that allow for the direct, rigid attachment of other PLUS elements like dovetail plates, clamps, and guide rings without flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC Machined from a Single Block for 95mm Telescopes\u003c\/h3\u003e\n\u003cp\u003eEach ring is high-precision CNC machined from a single block of aluminum, ensuring perfect roundness and structural integrity for your 95mm telescope. After machining, the aluminum is sandblasted to create a smooth surface and then hard-anodized to increase its resistance to scratches and oxidation, ensuring long-term durability in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePLUS vs. Standard Rings: Universal Connectivity for 95mm Setups\u003c\/h3\u003e\n\u003cp\u003eUnlike standard telescope rings with only a few mounting holes, the 95mm PLUS rings feature a versatile system of threaded holes and central slots. This design allows you to attach accessories from other brands, not just PrimaLuceLab. You can easily fix a third-party plate or guide ring using a standard screw, offering far greater flexibility to integrate the rings into your existing setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 95mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e95mm\u003c\/strong\u003e. They are specifically verified by PrimaLuceLab to be compatible with the \u003cstrong\u003eTakahashi FSQ85, Takahashi FS-78, and Takahashi FC-100DF\/DL\u003c\/strong\u003e refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 95mm PLUS Support Rings improve the rigidity of my astrophotography setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy using a system of threaded holes, the 95mm PLUS rings allow you to bolt accessories like dovetail plates and guide rings directly to the rings. This creates a solid, flex-free mechanical train from the mount to the guide scope, which is critical for precise autoguiding and sharp, long-exposure images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope on top of the PrimaLuceLab 95mm PLUS rings when using them with my Takahashi FSQ85?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The top of the rings features threaded holes designed for attaching a PLUS Vixen or Losmandy-style plate. You can then attach guide rings or a dovetail clamp to that plate, creating a secure platform for your guide scope directly above your Takahashi FSQ85.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Losmandy-style dovetail plate from another brand. Can I attach it to the bottom of the 95mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. The 95mm PLUS rings include central slots in addition to the PLUS-specific threaded holes. These slots are designed to provide compatibility with plates and accessories from other manufacturers by allowing you to fix them with standard screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ePrima Luce Universal System (PLUS)\u003c\/strong\u003e is an ecosystem of mechanical components (rings, plates, clamps, etc.) designed to work together seamlessly. Every part features a specific pattern of threaded holes and slots, allowing you to build a completely modular and rigid telescope support system without any custom drilling or modification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the PrimaLuceLab 95mm PLUS rings made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe rings are CNC machined from a solid block of \u003cstrong\u003ealuminum\u003c\/strong\u003e. They are then sandblasted for a smooth finish and \u003cstrong\u003ehard-anodized\u003c\/strong\u003e to protect them from scratches and corrosion, ensuring they can withstand regular use in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e95mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS (Prima Luce Universal System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eCNC Machined Aluminum Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSandblasted and Hard-Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVerified Compatible Telescopes\u003c\/td\u003e\n\u003ctd\u003eTakahashi FSQ85, FS-78, FC-100DF, FC-100DL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967884095773,"sku":"PLL-PLLANSU95P","price":301.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-95mm-PLUS-support-rings__65077.1617396037.1280.1280.jpg?v=1684346432"},{"product_id":"primalucelab-100mm-plus-support-rings","title":"PrimaLuceLab 100mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 100mm Diameter Optical Tubes\u003c\/li\u003e\n\u003cli\u003ePart of the Modular PrimaLuceLab PLUS System\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-Machined from a Single Aluminum Block\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish for Increased Durability and Corrosion Resistance\u003c\/li\u003e\n\u003cli\u003eMultiple Threaded Holes and Slots for Mounting Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 100mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 100mm PLUS Support Rings provide a rigid, versatile mounting foundation for telescopes with 100mm optical tubes, such as the Sky-Watcher ED80 and ED100 refractors. Machined from a single block of aluminum, these rings are the starting point for integrating your telescope into the comprehensive PrimaLuceLab PLUS accessory ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Foundation for 100mm Refractors\u003c\/h3\u003e\n\u003cp\u003eThese support rings are engineered specifically for optical tubes with a 100mm outer diameter, providing a secure and precise fit. By replacing the stock rings on telescopes like the Sky-Watcher ED80 or ED100, you unlock the ability to mount your instrument on a wider variety of mounts and add a rigid framework for imaging accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Rigidity from a Single Aluminum Block\u003c\/h3\u003e\n\u003cp\u003eEach ring is manufactured with high-precision CNC machines from a solid block of aluminum, eliminating flexure points found in cast or multi-part rings. The surface is sandblasted for a smooth finish and then hard-anodized, increasing the material's hardness and protecting it from oxidation and field wear. This robust construction ensures your optical system remains perfectly aligned, even when loaded with heavy cameras and guide scopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Connectivity for Plates, Guides, and More\u003c\/h3\u003e\n\u003cp\u003eThe key advantage of the PLUS rings is their array of threaded holes, counter-bored holes, and slots. This pattern allows you to directly attach PLUS System dovetail plates to both the top and bottom of the rings, creating a rigid structure for mounting guide scopes, control computers like the EAGLE, or other accessories. Central slots also offer compatibility, allowing you to attach plates or accessories from other manufacturers using standard screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 100mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e100mm\u003c\/strong\u003e. They are a confirmed fit for popular refractors like the \u003cstrong\u003eSky-Watcher ED80\u003c\/strong\u003e and \u003cstrong\u003eED100\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePLUS (Prima Luce Universal System) is a modular ecosystem of rings, plates, dovetail clamps, and other accessories designed to work together seamlessly. All components share a standardized pattern of threaded holes and slots, allowing you to build a rigid and versatile telescope setup with maximum flexibility and no custom drilling required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do these 100mm PLUS rings improve my setup's rigidity?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy being machined from a single block of aluminum and allowing you to bolt dovetail plates directly to both the top and bottom, the 100mm PLUS rings create a solid, box-like frame around your telescope. This significantly reduces mechanical flexure compared to standard cast rings that often only have a single point of contact with the mount's dovetail bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach non-PrimaLuceLab accessories to these 100mm rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While the threaded holes are optimized for other PLUS components, the rings also feature central slots. These slots allow you to use standard screws to attach plates, guide rings, or other mechanical accessories from different brands, offering a good degree of cross-compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Sky-Watcher ED80; how can I use the 100mm PLUS rings to add a guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter installing the 100mm PLUS rings on your Sky-Watcher ED80, you can attach a PLUS Vixen or Losmandy-style plate to the top of the rings. On that top plate, you can then mount a set of PLUS guide rings holding your guide scope, creating a secure, parallel alignment for autoguiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use these 100mm PLUS rings to mount my 100mm refractor on a Losmandy-style mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. You would attach a PrimaLuceLab Losmandy-style dovetail plate (such as the 240mm or 350mm PLUS plates) to the bottom of the 100mm PLUS rings. This provides the correct interface to securely connect your telescope to any mount equipped with a Losmandy-D style saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSandblasted and Hard Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown Telescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eSky-Watcher ED80, Sky-Watcher ED100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967884226845,"sku":"PLL-PLLANSU100P","price":315.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-100mm-PLUS-support-rings__72759.1617396037.1280.1280.jpg?v=1684346433"},{"product_id":"primalucelab-105mm-plus-support-rings","title":"PrimaLuceLab 105mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e105mm Internal Diameter\u003c\/li\u003e\n\u003cli\u003ePrima Luce Universal System (PLUS) Compatible\u003c\/li\u003e\n\u003cli\u003eHigh-Precision CNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish for Durability\u003c\/li\u003e\n\u003cli\u003eVersatile Threaded Holes and Slots for Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 105mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 105mm PLUS Support Rings are CNC-machined from a solid aluminum block to provide an inflexible mounting foundation for optical tubes with a 105mm outer diameter. As a core component of the Prima Luce Universal System, these 105mm rings create a rigid, versatile structure for attaching dovetail plates, guide rings, and other accessories both above and below your 105mm telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Rigidity for a 105mm Foundation\u003c\/h3\u003e\n\u003cp\u003eUnlike cast or bent-metal rings that can introduce flexure into an imaging setup, each 105mm PLUS ring is machined with high precision from a single block of aluminum. This method ensures perfect roundness and structural integrity. The aluminum is then sandblasted for a smooth finish and hard-anodized to increase surface hardness and protect against oxidation, resulting in a mounting platform that will not yield under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull PLUS System Integration for 105mm Telescopes\u003c\/h3\u003e\n\u003cp\u003eThese 105mm rings are designed to be the central connection point in your astrophotography rig. The PLUS system's array of threaded holes and slots allows you to securely bolt other PLUS components directly to the rings. You can attach a Losmandy or Vixen plate below for the mount connection and another plate above to hold a guide scope, an EAGLE computer, or other accessories, creating a single, mechanically rigid assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Mounting Beyond the 105mm PLUS Ecosystem\u003c\/h3\u003e\n\u003cp\u003eWhile designed for seamless integration with the PLUS ecosystem, PrimaLuceLab engineered these 105mm rings for broad compatibility. A series of central slots allows you to attach plates and accessories from other manufacturers using standard screws. This design choice gives you the freedom to incorporate the rigidity of the 105mm PLUS rings into your existing setup without needing to replace all of your hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the PrimaLuceLab 105mm PLUS Support Rings improve rigidity?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe rings are \u003cstrong\u003eCNC-machined from a solid block of aluminum\u003c\/strong\u003e, unlike rings that are cast or bent into shape. This process creates a single, continuous piece of metal with no weak points, eliminating the primary source of mechanical flexure in the mounting system. The hard-anodized finish further increases surface strength.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope on top of the 105mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The top of each 105mm ring is drilled and tapped with threaded holes compatible with the PLUS system. You can attach a second Vixen or Losmandy PLUS plate across the top of the rings, which then provides a rigid platform for mounting guide rings and a guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the PrimaLuceLab 105mm PLUS Support Rings compatible with non-PrimaLuceLab dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. In addition to the threaded holes for the PLUS system, the rings feature central slots. These slots allow you to use standard screws to attach most third-party dovetail plates or other accessories that may not conform to the PLUS hole pattern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the PLUS system for the 105mm Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main benefit is creating a completely integrated and rigid mechanical system. All PLUS elements (plates, rings, clamps) are designed to bolt together directly, creating a solid structure with no chance of slipping or flexing. This is critical for long-exposure astrophotography where even minor shifts can ruin an image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 105mm PLUS Support Rings fit my Borg 107FL or Takahashi FSQ-106ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 105mm internal diameter is precise. You must measure the exact outer diameter of your optical tube to confirm a fit. While many refractors are in this size class, tube diameters can vary between models and manufacturers. For a secure, non-damaging fit, the telescope's tube diameter should be exactly 105mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre these 105mm rings hinged?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the PrimaLuceLab 105mm PLUS Support Rings are a solid, non-hinged design. To install them, you must remove any dovetail plate from your telescope and slide the optical tube through the rings. This design is inherently more rigid than a hinged clamshell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967884357917,"sku":"PLL-PLLANSU105P","price":329.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-105mm-PLUS-support-rings__04327.1617396038.1280.1280.jpg?v=1684346435"},{"product_id":"primalucelab-115mm-plus-support-rings","title":"PrimaLuceLab 115mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 115mm diameter optical tubes\u003c\/li\u003e\n\u003cli\u003ePart of the modular PrimaLuceLab PLUS system\u003c\/li\u003e\n\u003cli\u003eCNC-machined from a single block of aluminum\u003c\/li\u003e\n\u003cli\u003eHard-anodized for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eFeatures multiple threaded holes and slots for accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 115mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 115mm PLUS Support Rings are engineered to securely mount optical tubes with a 115mm diameter, forming the core of a rigid and versatile imaging system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: A Rigid, Modular Foundation\u003c\/h3\u003e\n\u003cp\u003eThese are not just tube rings; they are a central component of the Prima Luce Universal System (PLUS). The PLUS ecosystem is designed around a pattern of threaded holes and slots that allow you to rigidly connect plates, guide rings, and other accessories above and below your telescope, eliminating the flexure common in less integrated setups. This modularity gives you the freedom to build a stable mechanical foundation for any imaging application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Engineering: CNC-Machined Aluminum Construction\u003c\/h3\u003e\n\u003cp\u003eEach PLUS component, including the 115mm support rings, is high-precision CNC machined from a single block of aluminum. This method ensures maximum structural integrity compared to cast or multi-part rings. After machining, the aluminum is sandblasted for a smooth surface and then hard-anodized to increase durability and protect it from oxidation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Compatibility for 115mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eDesigned for telescopes with an approximate tube diameter of 115mm, these rings are a perfect fit for a range of popular refractors. They are confirmed to be compatible with models like the Vixen VSD, Vixen AX103S, Vixen ED103D, and Takahashi TSA102. For connecting accessories from other brands, a series of central slots are provided, allowing you to fix non-PLUS plates or guide rings using standard screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the PrimaLuceLab 115mm PLUS Support Rings over standard rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is their integration into the \u003cstrong\u003ePrimaLuceLab PLUS system\u003c\/strong\u003e. This system uses a standardized pattern of threaded holes and slots, allowing you to rigidly attach dovetail plates, guide rings, and other accessories with zero flexure. This creates a far more stable and modular platform for astrophotography than typical, isolated tube rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 115mm PLUS rings fit my Takahashi TSA102 refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 115mm PLUS Support Rings are specifically designed to be compatible with the \u003cstrong\u003eTakahashi TSA102\u003c\/strong\u003e. They are also compatible with other telescopes with a similar 115mm tube diameter, such as the Vixen VSD, Vixen AX103S, and Vixen ED103D.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a guide scope to the 115mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can easily attach a guide scope by first mounting a PLUS dovetail plate (such as a Vixen or Losmandy style) to the top of the 115mm rings. Then, you can attach PLUS guide rings directly to the plate, creating a secure, adjustable platform for your guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the 115mm PLUS Support Rings compatible with non-PrimaLuceLab dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While they are designed for seamless integration with other PLUS elements, the rings also feature a series of central slots. These slots allow you to attach plates or other accessories from different manufacturers using standard screws, ensuring broad compatibility with your existing equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the PrimaLuceLab 115mm PLUS Support Rings made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThey are constructed from a \u003cstrong\u003esingle block of aluminum\u003c\/strong\u003e that is high-precision CNC machined. The rings are then sandblasted for a smooth finish and hard-anodized, which increases the material's hardness and provides excellent protection against corrosion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount my telescope with the 115mm PLUS rings on a mount with a Vixen-style clamp?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. To do this, you would attach a PrimaLuceLab Vixen-style PLUS dovetail plate to the bottom of the 115mm rings. The entire assembly can then be securely mounted on any astronomical mount equipped with a Vixen-style saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887307037,"sku":"PLL-PLLANSU115P","price":343.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-115mm-PLUS-support-rings__85869.1617396038.1280.1280.jpg?v=1684346508"},{"product_id":"primalucelab-125mm-plus-support-rings","title":"PrimaLuceLab 125mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e125mm Internal Diameter\u003c\/li\u003e\n\u003cli\u003ePrimaLuceLab PLUS System Integration\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eHard-Anodized Finish\u003c\/li\u003e\n\u003cli\u003eOptimized for Takahashi FSQ106ED \u0026amp; TSA120\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 125mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 125mm PLUS Support Rings are CNC-machined from a single aluminum block to provide a flex-free mounting foundation for optical tubes with a 125mm diameter. These rings integrate seamlessly into the PrimaLuceLab Universal System (PLUS), offering a matrix of threaded holes to attach dovetail plates and guide rings to premium 125mm-class refractors like the Takahashi FSQ106ED.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Rigidity for 125mm OTAs\u003c\/h3\u003e\n\u003cp\u003eUnlike cast or bent-metal rings that can introduce flexure, each 125mm PLUS ring is machined from a solid block of aluminum for maximum structural integrity. This high-precision manufacturing ensures your optical tube is held perfectly parallel and secure, which is critical for maintaining alignment in an imaging system. The rings are then sandblasted and hard-anodized to protect against scratches and corrosion.\u003c\/p\u003e\n\u003cp\u003eThese rings are specifically designed to fit high-end refractors with a 125mm tube diameter, including the Takahashi FSQ106ED, FSQ106EDX, and TSA120. This precise fit ensures a secure grip without damaging the telescope's finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: A Modular Foundation for Your Imaging Rig\u003c\/h3\u003e\n\u003cp\u003eThese rings are a core component of the PrimaLuceLab PLUS (Prima Luce Universal System), an ecosystem of interoperable plates, clamps, and rings. A generous pattern of threaded holes, plain holes, and slots on the rings allows for the rigid attachment of other PLUS components, such as Vixen or Losmandy style dovetail plates, on both the top and bottom of your telescope.\u003c\/p\u003e\n\u003cp\u003eThis modularity lets you build a compact and stable imaging platform. You can easily add guide rings for a separate guide scope or mount an EAGLE control unit directly to the top of the rings. For those with accessories from other brands, central slots provide compatibility for attaching third-party plates or rings using standard screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 125mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e125mm\u003c\/strong\u003e. They are a confirmed fit for premium refractors such as the \u003cstrong\u003eTakahashi FSQ106ED\u003c\/strong\u003e, \u003cstrong\u003eTakahashi FSQ106EDX\u003c\/strong\u003e, and \u003cstrong\u003eTakahashi TSA120\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a guide scope using the 125mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can attach a guide scope by mounting a second dovetail plate (Vixen or Losmandy style) to the top of the 125mm PLUS rings. Then, you can attach guide rings with a corresponding dovetail clamp to that plate. This creates a highly rigid, dual-scope setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the PrimaLuceLab 125mm PLUS rings attach to my mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe rings themselves do not attach directly to a mount. You must first bolt a dovetail plate (such as a Vixen-style or Losmandy-style PLUS plate, sold separately) to the bottom of the rings. This plate then slides into the saddle clamp on your astronomical mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre these 125mm rings compatible with non-PrimaLuceLab dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed for the PLUS system, the rings feature a series of central slots that allow you to attach plates and other accessories from different manufacturers using standard screws, providing a high degree of cross-brand compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Takahashi FSQ106ED and want to add an EAGLE computer. Are the 125mm PLUS rings the right choice?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The 125mm PLUS rings are the ideal starting point. You can attach the FSQ106ED within the rings, connect a Losmandy or Vixen plate to the bottom for your mount, and then bolt the EAGLE computer directly to the threaded holes on top of the rings for a clean, integrated setup with minimal cable clutter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 125mm PLUS rings fit a refractor with a 130mm tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the 125mm internal diameter is fixed and cannot accommodate a larger 130mm tube. It is crucial to measure your telescope's tube diameter accurately before purchasing to ensure a proper fit. PrimaLuceLab offers PLUS rings in a wide variety of other sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e125mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHard Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown Compatible Telescopes\u003c\/td\u003e\n\u003ctd\u003eTakahashi FSQ106ED, FSQ106EDX, TSA120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e125mm PLUS Support Rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887438109,"sku":"PLL-PLLANSU125P","price":357.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-125mm-PLUS-support-rings__45995.1617396038.1280.1280.jpg?v=1684346510"},{"product_id":"primalucelab-131mm-plus-support-rings","title":"PrimaLuceLab 131mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eInternal Diameter: 131mm\u003c\/li\u003e\n\u003cli\u003eMaterial: CNC-machined from a single block of aluminum\u003c\/li\u003e\n\u003cli\u003eSystem Compatibility: Part of the PrimaLuceLab PLUS modular system\u003c\/li\u003e\n\u003cli\u003eFinish: Sandblasted and hard anodized for durability\u003c\/li\u003e\n\u003cli\u003eMounting: Pre-drilled with threaded holes and slots for plates and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 131mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 131mm PLUS Support Rings provide a rigid, system-integrated mounting solution for optical tubes with an approximate 131mm diameter, such as the SkyWatcher ESPRIT 100ED refractor. Engineered as a core component of the PrimaLuceLab PLUS ecosystem, these rings replace standard, often flexible, factory rings with a solid, CNC-machined foundation for your entire imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Precise 131mm Fit for Mid-Size Refractors\u003c\/h3\u003e\n\u003cp\u003eDesigned for telescopes requiring a 131mm internal diameter, these rings provide a secure, non-marring grip on your optical tube. This precise fit is critical for maintaining mechanical alignment and preventing flexure, especially when supporting the weight of a camera, filter wheel, and guide scope. They are an ideal upgrade for owners of mid-size refractors seeking a more stable connection to their mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull Integration with the PrimaLuceLab PLUS System\u003c\/h3\u003e\n\u003cp\u003eThese are not just tube rings; they are the backbone of a modular mounting system. The 131mm PLUS rings feature an array of threaded holes and slots that allow for the direct, secure attachment of PLUS dovetail plates, clamps, and guide rings. This design lets you build a compact and incredibly rigid assembly, attaching a guide scope above or a control computer below your main telescope without any instability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop and Bottom Mounting:\u003c\/strong\u003e Attach Losmandy or Vixen-style plates to both the top and bottom of the rings simultaneously for maximum rigidity and accessory space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Brand Compatibility:\u003c\/strong\u003e Central slots are included to allow the attachment of plates and accessories from other manufacturers, ensuring the rings can be integrated into your existing setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePLUS Ecosystem:\u003c\/strong\u003e Seamlessly connect other PrimaLuceLab components like guide rings and dovetail clamps to create a unified, flexure-free mechanical support system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined for Zero-Flexure Support\u003c\/h3\u003e\n\u003cp\u003eEach ring is machined from a single block of high-grade aluminum using high-precision CNC machines, eliminating the weak points found in cast or multi-part rings. The aluminum is then sandblasted to create a smooth finish and hard-anodized to increase surface hardness and protect against oxidation. This manufacturing process ensures that the rings contribute zero flexure to your optical system, preserving the integrity of your guiding and imaging data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 131mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope optical tube with an approximate diameter of \u003cstrong\u003e131mm\u003c\/strong\u003e. They are a confirmed fit for telescopes like the \u003cstrong\u003eSkyWatcher ESPRIT 100ED\u003c\/strong\u003e and other similarly sized mid-range refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 131mm PLUS rings help build a rigid imaging setup for my SkyWatcher ESPRIT 100ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy replacing the stock rings, the \u003cstrong\u003e131mm PLUS rings\u003c\/strong\u003e offer a far more rigid connection point. Their CNC-machined, single-block construction prevents flexure. Furthermore, the integrated system of threaded holes allows you to directly bolt on PLUS dovetail plates and guide rings, creating a single, solid structure from your mount to your guide scope, which is critical for accurate autoguiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat advantages do the PrimaLuceLab 131mm PLUS rings have over generic tube rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is their integration into the \u003cstrong\u003ePLUS (Prima Luce Universal System)\u003c\/strong\u003e. Unlike generic rings that may only offer a few standard mounting holes, PLUS rings are designed as part of a complete ecosystem. This allows for more secure, versatile, and flexure-free attachment of plates, guide scopes, and other accessories without drilling or adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach accessories from other brands to the 131mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. PrimaLuceLab has designed the \u003cstrong\u003e131mm PLUS rings\u003c\/strong\u003e with a series of central slots in addition to the PLUS-specific threaded holes. These slots allow you to use standard screws to attach dovetail plates or other mechanical accessories from different manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are the 131mm PLUS rings made from CNC-machined aluminum?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCNC (Computer Numerical Control) machining\u003c\/strong\u003e from a solid block of aluminum ensures the highest possible precision and structural integrity. This process eliminates the internal stresses and potential weak points of cast metal, resulting in a set of rings that are incredibly strong and will not bend or flex under the load of a heavy imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm concerned about flexure in my imaging train. How do the 131mm PLUS rings address this?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFlexure is the primary issue the \u003cstrong\u003e131mm PLUS rings\u003c\/strong\u003e are built to solve. They address it in two ways:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Strength:\u003c\/strong\u003e The solid, CNC-machined aluminum construction is inherently resistant to bending.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Rigidity:\u003c\/strong\u003e By allowing you to bolt accessories directly to the rings, they eliminate intermediate adapters or stacked plates, which are common sources of mechanical flex. This creates a shorter, more rigid mechanical train.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e131mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThis product consists of support rings only. No additional items are included in the box.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo manual or software is available for this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887470877,"sku":"PLL-PLLANSU131P","price":399.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-131mm-PLUS-support-rings__17723.1617396038.1280.1280.jpg?v=1684346512"},{"product_id":"primalucelab-134mm-plus-support-rings","title":"PrimaLuceLab 134mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 134mm Diameter Optical Tubes\u003c\/li\u003e\n\u003cli\u003ePart of the PrimaLuceLab PLUS Modular System\u003c\/li\u003e\n\u003cli\u003eCNC-Machined from a Solid Block of Aluminum\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish for Durability\u003c\/li\u003e\n\u003cli\u003ePre-Drilled with Threaded Holes and Slots for Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 134mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 134mm PLUS Support Rings provide a rigid, precision-machined mounting solution engineered specifically for optical tubes with a 134mm diameter, forming the backbone of a stable and versatile imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Solid Foundation for 134mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eUnlike generic or cast-metal rings, each component in the PLUS system is CNC-machined from a single block of aluminum. This process ensures maximum rigidity and perfect alignment for your telescope. The rings are then sandblasted for a smooth finish and hard-anodized to protect against scratches and oxidation, maintaining their structural integrity and appearance through years of field use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Core of the PLUS System: A Modular Foundation\u003c\/h3\u003e\n\u003cp\u003eThese 134mm rings are a central component of the Prima Luce Universal System (PLUS). The system is designed around a comprehensive series of plates, guide rings, and dovetail clamps that connect seamlessly using a pattern of threaded holes and slots. This modularity allows you to build a completely customized and rigid support structure for your telescope, autoguider, and other accessories without flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Compatibility Beyond PrimaLuceLab Gear\u003c\/h3\u003e\n\u003cp\u003eWhile designed for perfect integration with other PLUS elements, PrimaLuceLab engineered these rings for broad compatibility. A series of central slots allows you to securely attach plates, guide rings, or other accessories from different manufacturers using standard screws. This lets you integrate the stability of the 134mm PLUS rings into your existing setup, regardless of the brands you use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 134mm PLUS Support Rings work with my Takahashi FS-128 or other 134mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, these rings are specifically designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e134mm\u003c\/strong\u003e. They provide a precise and secure fit for instruments of this size, ensuring a stable connection to your mounting system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Prima Luce Universal System (PLUS) is an ecosystem of high-quality mechanical components, including dovetail plates, clamps, guide rings, and support rings. All elements feature a standardized pattern of threaded holes and slots, allowing you to assemble a rigid, modular, and flexure-free support system for your astrophotography rig.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope using the 134mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. You can attach a PLUS guide ring directly to the top of the 134mm rings, or you can mount a Vixen or Losmandy style dovetail plate across the top of the rings first. This top plate then provides a platform to attach your guide scope, finder scope, or an EAGLE control unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach non-PrimaLuceLab dovetail plates to the 134mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The rings include central slots in addition to the PLUS-specific threaded holes. These slots are designed to allow you to attach plates or other accessories from different manufacturers using standard screws, offering excellent cross-brand compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the PrimaLuceLab 134mm PLUS rings made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEach ring is machined with high precision from a solid block of \u003cstrong\u003ealuminum\u003c\/strong\u003e using CNC machines. They are then sandblasted for a smooth surface and hard-anodized, which increases the material's hardness and protects it from corrosion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I use the 134mm PLUS rings instead of my telescope's stock rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantages are \u003cstrong\u003erigidity and modularity\u003c\/strong\u003e. The CNC-machined construction prevents flexure that can ruin long exposures. The integration with the PLUS system provides a secure, standardized way to attach all your accessories, from guide scopes to computers, creating a more stable and organized imaging platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887733021,"sku":"PLL-PLLANSU134P","price":413.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-134mm-PLUS-support-rings__65771.1617396039.1280.1280.jpg?v=1684346517"},{"product_id":"primalucelab-140mm-plus-support-rings","title":"PrimaLuceLab 140mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003eSecurely holds optical tubes with a 140mm diameter\u003c\/li\u003e\n  \u003cli\u003eCNC machined from a solid aluminum block for maximum rigidity\u003c\/li\u003e\n  \u003cli\u003ePart of the modular PrimaLuceLab PLUS (Prima Luce Universal System)\u003c\/li\u003e\n  \u003cli\u003eHard-anodized finish protects against scratches and oxidation\u003c\/li\u003e\n  \u003cli\u003eWeighs 0.7 kg as a pair, ensuring a solid, flex-free connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n  \u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n  \u003cli\u003eFAQ\u003c\/li\u003e\n  \u003cli\u003eSpecifications\u003c\/li\u003e\n  \u003cli\u003eIn the Box\u003c\/li\u003e\n  \u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n  \u003cli class=\"active\"\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section-center\"\u003e\n          \u003ch2\u003ePrimaLuceLab 140mm PLUS Support Rings\u003c\/h2\u003e\n          \u003cp\u003eThe 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.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003e140mm CNC Machined Rings: A Rigid Foundation from Solid Aluminum\u003c\/h3\u003e\n          \u003cp\u003eUnlike 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.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eThe PLUS Advantage: Total Modularity for Your 140mm OTA\u003c\/h3\u003e\n          \u003cp\u003eThese 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.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eDual Mounting:\u003c\/strong\u003e Attach Vixen or Losmandy style plates above and below the optical tube for mounting and accessories.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eBroad Compatibility:\u003c\/strong\u003e Central slots allow you to attach plates and accessories from other manufacturers, not just those in the PLUS system.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSystem Rigidity:\u003c\/strong\u003e Connecting PLUS elements together creates a single, solid mechanical structure, crucial for stable autoguiding and sharp images.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the PrimaLuceLab 140mm PLUS Support Rings better than generic rings?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe key differences are in the manufacturing and system integration. \u003cstrong\u003ePrimaLuceLab PLUS rings are CNC machined from a solid block of aluminum\u003c\/strong\u003e, 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.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 140mm PLUS Support Rings with dovetail plates I already own?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYes. While the rings are designed for seamless integration with PrimaLuceLab's own PLUS plates, they also feature \u003cstrong\u003ecentral slots that allow you to attach plates from other brands\u003c\/strong\u003e using standard screws. This ensures you can integrate these high-quality rings into your existing setup.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 140mm PLUS rings help me add a guide scope to my 140mm refractor?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe 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.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Sky-Watcher mount with a Losmandy-style saddle. How do the 140mm PLUS rings connect?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYou 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.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are the PrimaLuceLab 140mm PLUS rings hard-anodized?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003e\u003cstrong\u003eHard anodizing\u003c\/strong\u003e 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.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the PLUS system for the 140mm rings?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe main benefit is \u003cstrong\u003emodularity and guaranteed rigidity\u003c\/strong\u003e. 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.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003ctable class=\"DAV-specifications\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eInternal Diameter\u003c\/td\u003e\n          \u003ctd\u003e140mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eWeight\u003c\/td\u003e\n          \u003ctd\u003e0.7 kg\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMaterial\u003c\/td\u003e\n          \u003ctd\u003eCNC Machined Aluminum\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFinish\u003c\/td\u003e\n          \u003ctd\u003eSandblasted, Hard-Anodized\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSystem\u003c\/td\u003e\n          \u003ctd\u003ePrimaLuceLab PLUS (Prima Luce Universal System)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cul class=\"DAV-grid\"\u003e\n      \u003cli class=\"DAV-grid-item\"\u003e\n        \u003cdiv\u003e\n          \u003cp class=\"DAV-item-title\"\u003e140mm PLUS Support Rings\u003c\/p\u003e\n          \u003cp class=\"DAV-item-subtitle\"\u003e× 1 (Pair)\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \n  \u003cli\u003e\n    \u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887765789,"sku":"PLL-PLLANSU140P","price":427.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-140mm-PLUS-support-rings__83878.1617396039.1280.1280.jpg?v=1684346518"},{"product_id":"primalucelab-145mm-plus-support-rings","title":"PrimaLuceLab 145mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e145mm Internal Diameter\u003c\/li\u003e\n\u003cli\u003ePrimaLuceLab PLUS System Integration\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish\u003c\/li\u003e\n\u003cli\u003eUniversal Hole and Slot Pattern\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 145mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 145mm PLUS Support Rings are a high-precision mounting solution for optical tubes with an approximate 145mm diameter. As a core component of the modular PrimaLuceLab Universal System (PLUS), these 145mm rings transform a standalone telescope into a rigid, expandable imaging platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Rigidity for 145mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eUnlike cast or bent-metal rings that can introduce flexure, each PrimaLuceLab PLUS ring is CNC machined from a solid block of aluminum. This process ensures exceptional mechanical precision and a stress-free grip on your optical tube, which is critical for maintaining alignment during long-exposure astrophotography. The rings are then sandblasted and hard-anodized, creating a durable, scratch-resistant surface that protects against oxidation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: A Modular Foundation for Your 145mm OTA\u003c\/h3\u003e\n\u003cp\u003eThese are more than just support rings; they are the foundation of a fully integrated mechanical system. The 145mm PLUS rings feature a pattern of threaded holes, unthreaded holes, and slots that allow for the direct attachment of other PLUS components. You can easily add dovetail plates above and below your telescope for increased stability or mount guide rings and other accessories without drilling or custom adapters.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Component Mounting:\u003c\/strong\u003e Attach guide scopes, dovetail clamps, or an EAGLE computer directly to the rings for a compact and stable setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem-Wide Rigidity:\u003c\/strong\u003e Connecting PLUS plates to both the top and bottom of the rings creates a rigid cage around your telescope, minimizing tube flexure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Brand Compatibility:\u003c\/strong\u003e Central slots are included to allow for the attachment of plates and accessories from other manufacturers, ensuring the rings can be integrated into your existing setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the PrimaLuceLab 145mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the \u003cstrong\u003ePrimaLuceLab 145mm PLUS Support Rings\u003c\/strong\u003e is to securely mount a telescope with a 145mm diameter optical tube to a dovetail plate, while also providing a modular platform for attaching additional accessories like guide scopes, control computers, and secondary dovetail plates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 145mm PLUS Support Rings improve my astrophotography setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThey provide a significant increase in mechanical rigidity compared to standard rings. By being \u003cstrong\u003eCNC machined from solid aluminum\u003c\/strong\u003e, they eliminate flexure that can cause trailed stars during long exposures. The integrated PLUS system of holes and slots allows you to build a more compact and stable imaging train by attaching guiders and other accessories directly to the rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach a guide scope to the PrimaLuceLab 145mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You can attach guide rings directly to the top of the 145mm PLUS rings using the provided threaded holes. Alternatively, you can mount a PLUS dovetail plate on top of the rings and then attach your guide scope using a compatible dovetail clamp, allowing for easy adjustment and removal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the PrimaLuceLab 145mm PLUS rings compatible with non-PLUS dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed for seamless integration with the PLUS system, the rings include central slots that allow you to fasten them to most standard Vixen or Losmandy-style plates from other manufacturers using standard screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a telescope with a 140mm tube. Can I use the 145mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e145mm PLUS rings\u003c\/strong\u003e are designed for tubes with an approximate diameter of 145mm. A smaller 140mm tube may not be held securely without modification. It is always recommended to use rings that precisely match your optical tube's diameter for optimal stability and to prevent damage to the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use the 145mm PLUS rings to mount an EAGLE computer on my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EAGLE computer shares the same PLUS mounting hole pattern. You can mount the EAGLE directly to the top of the \u003cstrong\u003e145mm PLUS rings\u003c\/strong\u003e. This creates an incredibly compact and integrated setup, minimizing cable drag and simplifying your entire imaging rig by placing the control unit right on the optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e145mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturing Process\u003c\/td\u003e\n\u003ctd\u003eCNC Machined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHard Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887831325,"sku":"PLL-PLLANSU145P","price":441.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-145mm-PLUS-support-rings__63263.1617396039.1280.1280.jpg?v=1684346520"},{"product_id":"primalucelab-150mm-plus-support-rings","title":"PrimaLuceLab 150mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 150mm Diameter Optical Tubes\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003ePart of the Modular PrimaLuceLab PLUS System\u003c\/li\u003e\n\u003cli\u003eUniversal Hole and Slot Pattern for Maximum Compatibility\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish for Durability and Corrosion Resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 150mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 150mm PLUS Support Rings provide a rigid, precision-engineered mounting foundation for any telescope with a 150mm optical tube diameter. Designed as the core of the PLUS modular ecosystem, these 150mm rings feature a universal pattern of threaded holes and slots to securely attach guide scopes, dovetail plates, and control units with zero flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Aluminum for 150mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eUnlike cast or bent-metal rings, each PLUS support ring is machined from a solid block of aluminum using high-precision CNC machines. This process ensures a perfect 150mm circular profile for a secure grip that won't mar your telescope's finish. The aluminum is then sandblasted for a smooth surface and hard-anodized to increase durability and protect against oxidation, ensuring a lifetime of reliable use in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: Universal Connectivity for Your 150mm OTA\u003c\/h3\u003e\n\u003cp\u003eThese rings form the backbone of the Prima Luce Universal System (PLUS), a comprehensive ecosystem of interlocking plates, clamps, and accessories. The 150mm rings feature a versatile array of threaded holes and slots, allowing you to rigidly mount dovetail plates on both the top and bottom. This lets you attach your 150mm telescope to a mount while simultaneously adding a guide scope, an EAGLE computer, or other accessories on top, creating a solid, integrated imaging platform.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Rigidity:\u003c\/strong\u003e By connecting plates above and below your 150mm tube, you create a rigid cage structure that dramatically reduces mechanical flex, a critical factor for long-exposure astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Brand Compatibility:\u003c\/strong\u003e While designed for the PLUS system, the central slots allow you to attach plates and accessories from other manufacturers using standard screws, making them a universal upgrade for any 150mm telescope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the PrimaLuceLab 150mm PLUS Support Rings improve my telescope setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings provide a significant upgrade in mechanical rigidity over standard rings. By using CNC-machined aluminum and allowing you to attach dovetail plates to both the top and bottom of your 150mm telescope, you create a much stiffer \"cage\" assembly that minimizes flexure during imaging and slewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use these 150mm PLUS rings with plates from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While the threaded hole pattern is optimized for other PrimaLuceLab PLUS components, the rings also include central slots. These slots allow you to use standard screws to attach most Vixen or Losmandy-style plates from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 150mm refractor. How do these PLUS rings help me add a guidescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 150mm PLUS rings allow you to mount a dovetail plate on top of your refractor. You can then attach guide rings or a dovetail clamp to this top plate to securely hold your guidescope. This creates a stable, co-aligned guiding setup that moves perfectly with your main telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePLUS (Prima Luce Universal System) is an integrated ecosystem of support rings, plates, guide rings, and dovetail clamps designed to work together seamlessly. All PLUS elements feature a standardized pattern of threaded holes and slots, giving you maximum freedom and rigidity when building your astrophotography rig.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are the 150mm PLUS rings CNC-machined and anodized?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eCNC machining\u003c\/strong\u003e from a solid aluminum block ensures perfect roundness and a precise fit for your 150mm optical tube, which is superior to less accurate casting or bending methods. \u003cstrong\u003eHard anodizing\u003c\/strong\u003e creates a scratch-resistant surface and prevents corrosion, ensuring the rings maintain their structural integrity and appearance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount both a Losmandy plate on the bottom and a Vixen plate on top of the 150mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is a primary feature of the PLUS system. You can attach a Losmandy-style plate to the bottom of the 150mm rings to connect to your mount, and simultaneously attach a Vixen-style plate to the top to hold accessories like a guidescope or PrimaLuceLab EAGLE computer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHard Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e150mm PLUS Support Rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2 (Pair)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967887962397,"sku":"PLL-PLLANSU150P","price":455.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-150mm-PLUS-support-rings__17383.1617396039.1280.1280.jpg?v=1684346533"},{"product_id":"primalucelab-155mm-plus-support-rings","title":"PrimaLuceLab 155mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eInternal Diameter: 155mm\u003c\/li\u003e\n\u003cli\u003eCompatible with Takahashi FS-152 and TOA-130 refractors\u003c\/li\u003e\n\u003cli\u003ePart of the PrimaLuceLab PLUS modular system\u003c\/li\u003e\n\u003cli\u003eCNC machined from a single block of aluminum\u003c\/li\u003e\n\u003cli\u003eHard-anodized for durability and corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 155mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 155mm PLUS Support Rings are precision-engineered to provide a rigid, versatile mounting platform for optical tubes with a 155mm outer diameter, such as the Takahashi FS-152 and TOA-130 refractors. These rings are the foundation of a stable imaging setup, allowing you to securely attach your telescope and expand its capabilities with additional accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure Mounting for 155mm OTAs\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for telescopes with a 155mm tube diameter, these rings provide a perfect fit that prevents flexure and maintains alignment. By creating a solid connection between your telescope and mount, they are essential for long-exposure astrophotography where mechanical stability is critical. The design allows for mounting plates and other accessories both above and below the optical tube, enabling you to build a balanced and functional imaging rig.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: A Rigid, Modular Foundation\u003c\/h3\u003e\n\u003cp\u003eThese rings are a core component of the Prima Luce Universal System (PLUS), an ecosystem of plates, guide rings, and clamps designed to work together seamlessly. Every PLUS element features a pattern of threaded holes, plain holes, and slots, giving you maximum freedom to configure your setup. You can easily add a guide scope, control computer, or other hardware, confident that the entire mechanical system maintains exceptional rigidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC Machined Construction from a Single Aluminum Block\u003c\/h3\u003e\n\u003cp\u003eEach ring is CNC machined from a solid block of aluminum, ensuring high mechanical precision and strength that cast or molded rings cannot match. After machining, the aluminum is sandblasted to create a smooth surface finish and then hard-anodized. This anodization process increases the material's surface hardness and provides superior protection against scratches and oxidation, ensuring the rings withstand years of use in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich telescopes are compatible with the PrimaLuceLab 155mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e155mm\u003c\/strong\u003e. They are a confirmed fit for high-end refractors like the \u003cstrong\u003eTakahashi FS-152\u003c\/strong\u003e and \u003cstrong\u003eTakahashi TOA-130\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories can I attach to the 155mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe rings feature the versatile PLUS system of threaded holes and slots, allowing you to attach a wide range of accessories. Common additions include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop and bottom dovetail plates\u003c\/strong\u003e (Vixen or Losmandy style) for mounting and for accessory attachment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide rings and guide scopes\u003c\/strong\u003e for autoguiding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDovetail clamps\u003c\/strong\u003e to mount other hardware like an EAGLE control computer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 155mm PLUS rings help balance a Takahashi TOA-130 with a guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy attaching a PLUS dovetail plate to the top of the 155mm rings, you create a stable platform for your guide scope. You can then slide the guide scope assembly forward or backward to achieve perfect declination balance. A second, longer dovetail plate on the bottom allows you to adjust the entire telescope package for right ascension balance on the mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the PrimaLuceLab 155mm PLUS rings made from?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThey are precision \u003cstrong\u003eCNC machined from a single block of aluminum\u003c\/strong\u003e. This process ensures superior strength and dimensional accuracy. The rings are then sandblasted and hard-anodized to protect them from corrosion and wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use non-PrimaLuceLab plates with these 155mm rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed for the PLUS system, the rings include a series of central slots. These slots allow you to attach plates or other accessories from different manufacturers using standard screws, offering broad compatibility with your existing equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to mount my Takahashi FS-152 on a Losmandy-style mount. What else do I need with the 155mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo mount your FS-152, you will need the 155mm PLUS rings and a \u003cstrong\u003ePLUS Losmandy-style dovetail plate\u003c\/strong\u003e. You would attach the rings to the dovetail plate, then clamp the entire assembly into your Losmandy-compatible mount saddle. The length of the plate depends on your balancing needs; longer plates offer more room for adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967888093469,"sku":"PLL-PLLANSU155P","price":469.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-155mm-PLUS-support-rings__47955.1617396039.1280.1280.jpg?v=1684346535"},{"product_id":"primalucelab-168mm-plus-support-rings","title":"PrimaLuceLab 168mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for optical tubes with a 168mm diameter\u003c\/li\u003e\n\u003cli\u003ePart of the PrimaLuceLab PLUS modular mounting system\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined from a single aluminum block\u003c\/li\u003e\n\u003cli\u003eHard-anodized for increased durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eMultiple threaded holes and slots for accessory attachment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 168mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 168mm PLUS Support Rings are the definitive mounting solution for optical tubes with a 168mm diameter, precision CNC-machined from a single block of aluminum to serve as the foundation for PrimaLuceLab's modular PLUS ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Foundation of Rigidity: CNC-Machined for 168mm Telescopes\u003c\/h3\u003e\n\u003cp\u003eEach ring is machined from a solid block of aluminum, ensuring maximum mechanical stability without any points of weakness. The raw aluminum is then sandblasted to create a smooth, high-quality finish and hard-anodized to protect against scratches and oxidation. This level of construction provides a secure, non-flexing connection between your 168mm optical tube and your mounting plates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 168mm Gateway to the PLUS Modular System\u003c\/h3\u003e\n\u003cp\u003eThese are more than just support rings; they are the core of a fully integrated system. As part of the Prima Luce Universal System (PLUS), the 168mm rings feature an array of threaded holes and slots. This allows you to securely attach PLUS dovetail plates both above and below your telescope, add guide rings for an autoguiding system, or mount other accessories like a dovetail clamp, all with guaranteed rigidity.\u003c\/p\u003e\n\u003cp\u003eThe system is designed for maximum compatibility. While built for the PLUS ecosystem, the rings also include central slots that allow you to attach plates and accessories from other manufacturers using standard screws, ensuring they can be integrated into your existing setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 168mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope with an optical tube diameter of approximately \u003cstrong\u003e168mm\u003c\/strong\u003e. You should always measure the outer diameter of your telescope tube to confirm a precise fit before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system and how do these 168mm rings fit in?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ePLUS (Prima Luce Universal System)\u003c\/strong\u003e is an ecosystem of rings, plates, guide rings, and dovetail clamps designed to work together seamlessly. The 168mm PLUS Support Rings are a foundational component, allowing you to connect your telescope to this modular system and easily add other PLUS accessories with maximum rigidity and perfect alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope to the 168mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You can attach a PLUS dovetail plate to the top of the 168mm rings. On that plate, you can then install PLUS guide rings holding your guide scope, creating a stable and secure platform for autoguiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre these 168mm rings compatible with dovetail plates from other manufacturers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While they are optimized for the pre-threaded holes of the PLUS system, the rings also feature central slots. These slots allow you to use standard screws to attach most third-party dovetail plates or other accessories that may not conform to the PLUS hole pattern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the 168mm PLUS rings improve the stability of a telescope like a Celestron 6\" SCT on a mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Celestron 6\" SCT has an outer diameter very close to 168mm. By using these solid, CNC-machined rings instead of a standard single dovetail bar, you provide two points of contact on the optical tube. This dramatically reduces flexure and vibration, especially when you add guide scopes or other heavy accessories to the setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to piggyback a wide-field refractor on my main 168mm OTA. How do these PLUS rings help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 168mm PLUS rings make this process simple and secure. You would attach a long PLUS dovetail plate (such as the 240mm or 350mm version) to the top of the rings. Then, you can use another set of PLUS rings, correctly sized for your refractor, to clamp it firmly to that top plate, creating a rigid parallel imaging system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eTelescope tubes with 168mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-machined aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHard-anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e168mm PLUS Support Rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967888159005,"sku":"PLL-PLLANSU168P","price":483.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-168mm-PLUS-support-rings__64230.1617396039.1280.1280.jpg?v=1684346537"},{"product_id":"primalucelab-180mm-plus-support-rings","title":"PrimaLuceLab 180mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e180mm Internal Diameter\u003c\/li\u003e\n\u003cli\u003eCompatible with Takahashi TOA150 and similar OTAs\u003c\/li\u003e\n\u003cli\u003ePrimaLuceLab PLUS System Integration\u003c\/li\u003e\n\u003cli\u003eCNC-Machined from a Single Aluminum Block\u003c\/li\u003e\n\u003cli\u003eHard Anodized for Durability and Corrosion Resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 180mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eDesigned for optical tubes with a 180mm outer diameter, the PrimaLuceLab 180mm PLUS Support Rings are CNC-machined from a single block of aluminum to provide a rigid, zero-flexure mounting point for premium instruments like the Takahashi TOA150.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e180mm Rings for Takahashi TOA150 and Other OTAs\u003c\/h3\u003e\n\u003cp\u003eThese support rings provide the fundamental connection between your telescope and the rest of your imaging system. With a precise 180mm internal diameter, they are engineered to securely hold high-end refractors like the Takahashi TOA150, transforming a standalone optical tube into a versatile instrument ready for any mount or accessory configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eExpand Your Rig with the PLUS Mounting System\u003c\/h3\u003e\n\u003cp\u003eAs a core component of the Prima Luce Universal System (PLUS), these rings unlock a complete ecosystem of compatible hardware. The system of threaded holes, plain holes, and slots allows you to rigidly attach PLUS dovetail plates, guide rings, and other accessories above and below your main telescope. This modularity enables you to build complex setups, such as mounting a guide scope or piggybacking a second imaging telescope, with maximum stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Aluminum for Maximum Rigidity\u003c\/h3\u003e\n\u003cp\u003eEach ring is machined from a solid block of aluminum using high-precision CNC equipment, ensuring perfect roundness and structural integrity. The aluminum is then sandblasted for a smooth finish and hard-anodized to increase surface hardness and protect against oxidation. This manufacturing process results in a support system that eliminates flexure, a critical requirement for long-exposure astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 180mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope optical tube with an outer diameter of exactly \u003cstrong\u003e180mm\u003c\/strong\u003e. They are an ideal match for premium refractors such as the \u003cstrong\u003eTakahashi TOA150\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do these 180mm PLUS rings improve my imaging setup over stock rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is their integration into the \u003cstrong\u003ePrimaLuceLab PLUS system\u003c\/strong\u003e. Unlike stock rings, the PLUS system's universal hole and slot pattern allows you to rigidly attach a wide range of accessories like guide rings, dovetail plates, and clamps on both the top and bottom, creating a more stable and versatile imaging platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope on the PrimaLuceLab 180mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By attaching a PLUS dovetail plate to the top of the 180mm rings, you can then add PLUS guide rings or a dovetail clamp to hold your guide scope. This creates a secure, no-flexure autoguiding setup directly coupled to your main telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the PrimaLuceLab 180mm PLUS rings compatible with non-PLUS dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, they offer broad compatibility. The rings include a series of central slots that allow you to attach plates from other manufacturers using standard screws, giving you the flexibility to integrate them into an existing setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the hard anodized finish on these 180mm rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eHard anodizing\u003c\/strong\u003e increases the surface hardness of the aluminum, making the rings highly resistant to scratches and wear. It also provides superior protection against corrosion and oxidation compared to standard paint or powder coating, ensuring a long service life even in damp observing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Takahashi TOA150. What else do I need to mount it on a Losmandy-style mount using these rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo mount your Takahashi TOA150 on a Losmandy-style mount, you will need to attach a \u003cstrong\u003ePrimaLuceLab PLUS Losmandy-style dovetail plate\u003c\/strong\u003e to the bottom of these 180mm rings. A plate length of 350mm or longer is typically recommended for a telescope of this size to ensure proper balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967888257309,"sku":"PLL-PLLANSU180P","price":497.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-180mm-PLUS-support-rings__37703.1617396040.1280.1280.jpg?v=1684346538"},{"product_id":"primalucelab-235mm-plus-support-rings","title":"PrimaLuceLab 235mm PLUS Support Rings","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e235mm Internal Diameter\u003c\/li\u003e\n\u003cli\u003eCNC-Machined Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eHard Anodized for Durability\u003c\/li\u003e\n\u003cli\u003ePart of the Modular PLUS System\u003c\/li\u003e\n\u003cli\u003eUniversal Hole and Slot Pattern\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab 235mm PLUS Support Rings\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 235mm PLUS Support Rings provide a rigid, CNC-machined mounting solution for optical tubes with a 235mm diameter, such as 200mm Newtonian reflectors, forming the foundation of the modular PrimaLuceLab PLUS system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined Rigidity for 235mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eUnlike standard cast or bent-metal rings that can introduce flexure into an imaging system, each PrimaLuceLab PLUS ring is precision-machined from a solid block of aluminum. This manufacturing process ensures perfect roundness and structural integrity, eliminating a common source of tracking errors and image shift during long exposures.\u003c\/p\u003e\n\u003cp\u003eThe aluminum is then sandblasted to create a smooth, uniform surface and hard-anodized to increase surface hardness and protect against oxidation. This results in a pair of rings that not only provide a rigid connection to your mount but are also built to withstand years of use in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe PLUS System: A Modular Foundation for Your Imaging Rig\u003c\/h3\u003e\n\u003cp\u003eThese rings are a core component of the PrimaLuceLab PLUS (Prima Luce Universal System), an ecosystem designed for maximum mechanical flexibility. The rings feature a versatile pattern of threaded holes, unthreaded holes, and slots, allowing you to securely attach other PLUS components directly to them.\u003c\/p\u003e\n\u003cp\u003eYou can mount PLUS dovetail plates both above and below the rings to create an exceptionally rigid structure. This also provides ample real estate for adding accessories like guide scopes with PLUS guide rings, dovetail clamps, or control units like the PrimaLuceLab EAGLE. Central slots are also provided to ensure compatibility with plates and accessories from other brands, allowing you to integrate these high-precision rings into any existing setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the PrimaLuceLab 235mm PLUS Support Rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese rings are designed for any telescope optical tube with an outer diameter of approximately \u003cstrong\u003e235mm\u003c\/strong\u003e. They are a popular choice for 200mm (8\") Newtonian reflectors, whose tubes are often manufactured to this dimension.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the PrimaLuceLab 235mm PLUS rings differ from standard rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is in the manufacturing process and material. PrimaLuceLab PLUS rings are \u003cstrong\u003eCNC-machined from a solid block of aluminum\u003c\/strong\u003e for maximum rigidity and perfect roundness. Standard rings are often cast, which can lead to imperfections and flexure. The PLUS rings also feature a comprehensive system of holes and slots for modular accessory attachment, which most standard rings lack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope on the PrimaLuceLab 235mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You can attach a second PLUS dovetail plate on top of the rings, and then mount your guide scope and guide rings to that plate. This creates a secure, no-flex platform for your autoguiding system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 200mm f\/5 Newtonian and want to add a Losmandy-style plate on top. Can I do this with the 235mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The threaded hole pattern on the top of the PrimaLuceLab 235mm PLUS rings is designed to directly accept any PrimaLuceLab PLUS dovetail plate, including their Losmandy-style plates. This allows you to create a rigid top rail for mounting accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PrimaLuceLab PLUS system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ePLUS (Prima Luce Universal System)\u003c\/strong\u003e is an extensive lineup of mechanically compatible components, including rings, dovetail plates, clamps, and guide rings. All elements share a standardized hole-spacing pattern, allowing you to build a completely modular and rigid support system for your telescope without any custom drilling or modification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use accessories from another brand. Can I still attach them to the PrimaLuceLab 235mm PLUS rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. In addition to the PLUS-specific threaded holes, the rings feature central slots. These slots allow you to use standard screws to attach plates or other accessories from different manufacturers that may not conform to the PLUS hole pattern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter\u003c\/td\u003e\n\u003ctd\u003e235mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSandblasted and Hard Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab PLUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e235mm PLUS Support Rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1 (Pair)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967888781597,"sku":"PLL-PLLANSU235P","price":665.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-235mm-PLUS-support-rings__54519.1617396040.1280.1280.jpg?v=1684346542"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/primalucelab-tube-rings.oembed","provider":"David Astro","version":"1.0","type":"link"}