{"title":"Porte-oculaires Lunt","description":"\u003cp\u003eLes porte-oculaires Lunt servent au remplacement ou à l'amélioration des lunettes solaires Lunt et des petites lunettes. La gamme comprend un porte-oculaire hélicoïdal Mini 1.25\", des porte-oculaires à crémaillère 1.25\" à simple et double vitesse, un porte-oculaire de type Crayford 2\" avec mise au point fine 10:1, et des ensembles plaque arrière et porte-oculaire pour LS80MT et LS130T.\u003c\/p\u003e\u003cp\u003eUne double vitesse ou une démultiplication 10:1 facilite la mise au point précise à fort grossissement, utile en imagerie solaire.\u003c\/p\u003e","products":[{"product_id":"lunt-backing-plate-focuser-ls80mt","title":"Lunt Porte-Oculaire et Plaque de Support - LS80MT","description":"\u003c!-- more --\u003e\u003cul\u003e\u003cli\u003eLa plaque arrière et le porte-oculaire Crayford standard pour le LS80MT vous permettent de convertir ce télescope solaire dédié en un télescope pouvant être utilisé la nuit !\u003c\/li\u003e\u003c\/ul\u003e \u003cp\u003e\u003cspan\u003eVous avez un LS80MT et vous souhaitez également l'utiliser pour la nuit ? Vous pouvez le faire avec cette plaque arrière et ce porte-oculaire. Cette plaque arrière spéciale et le kit de mise au point Crayford standard de 2″ vous permettront de faire exactement cela !\u003c\/span\u003e\u003c\/p\u003e","brand":"Lunt Solar Systems","offers":[{"title":"Default Title","offer_id":44967531184413,"sku":"LSS-BP\u0026F\/LS80MT","price":525.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Lunt-Backing-Plate-Focuser__28421.1598214226.1280.1280.jpg?v=1684343507"},{"product_id":"lunt-mini-helical-focuser-1-25","title":"Lunt Mini Porte-Oculaire Hélicoïdal - 1.25\"","description":"\u003c!-- more --\u003e \u003cp\u003e\u003cspan\u003eLe Lunt Mini est un porte-oculaire hélicoïdal non rotatif qui fournit une connexion filetée T2 (mâle) à T2 (femelle). Le porte-oculaire a une course de précision de 10 mm, une bague de compression en laiton pour la protection des oculaires et un collier de verrouillage. La conception du filetage T2 est idéale pour une mise au point fine de l'appareil photo\/oculaire.\u003c\/span\u003e\u003c\/p\u003e","brand":"Lunt Solar Systems","offers":[{"title":"Default Title","offer_id":44967541866781,"sku":"LSS-LSMINI\/1.25","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Lunt-Mini-Helical-Focuser-1__19164.1598218124.1280.1280.jpg?v=1684343658"},{"product_id":"lunt-solar-1-25-r-p-focuser-single-speed","title":"Lunt Solar 1.25\" R\u0026P Focuser - Single Speed","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReplaces stock helical focusers on Lunt Solar telescopes\u003c\/li\u003e\n\u003cli\u003e1.25\" eyepiece and accessory holder\u003c\/li\u003e\n\u003cli\u003eRack and Pinion mechanism eliminates backlash and image shift\u003c\/li\u003e\n\u003cli\u003eSingle-speed design for smooth, direct focus control\u003c\/li\u003e\n\u003cli\u003eImproves stability for imaging and high-magnification visual use\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\u003eLunt Solar 1.25\" R\u0026amp;P Focuser - Single Speed\u003c\/h2\u003e\n\u003cp\u003eThe Lunt Solar 1.25\" R\u0026amp;P Focuser is a fundamental upgrade that replaces unstable helical focusers with a mechanically superior design engineered for critical solar observation. This single-speed 1.25\" focuser eliminates the backlash and load-bearing weakness common in stock helical units, ensuring your etalon and camera stay precisely aligned for high-magnification views.\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 Problem with Stock Focusers: Why a 1.25\" Helical Fails Under Load\u003c\/h3\u003e\n\u003cp\u003eMany solar telescopes utilize a helical focuser, a design prone to mechanical instability. When you turn a helical focuser, the entire eyepiece or camera rotates, leading to backlash and image shift that make achieving critical focus nearly impossible. This design also struggles with heavier loads, often flexing or slipping when an imaging camera is attached.\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\u003eLunt's R\u0026amp;P Solution: A Stable 1.25\" Focuser Platform\u003c\/h3\u003e\n\u003cp\u003eThis Lunt focuser uses a rack and pinion (R\u0026amp;P) mechanism to address the core failures of helical designs. The drawtube moves in and out on a fixed track, preventing any rotation of your equipment and eliminating image shift. The result is a stable, repeatable focusing motion that can support the weight of a solar imaging camera without flexure, even as the instrument heats up during an observing session.\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\u003eCritical Focus for Solar Imaging: Precision for the 1.25\" Format\u003c\/h3\u003e\n\u003cp\u003eAchieving the sharpest view of solar granulation or delicate prominences requires precise focus adjustments. The direct, zero-backlash motion of this 1.25\" R\u0026amp;P focuser allows for fine control that helical systems cannot match. While it is a single-speed focuser without a micro-focus knob, its smooth action represents a significant improvement in precision, making it an essential upgrade for anyone serious about high-resolution solar work.\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 Lunt 1.25\" R\u0026amp;P Focuser over a stock helical focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is the elimination of \u003cstrong\u003eimage shift and backlash\u003c\/strong\u003e. The rack and pinion design moves the eyepiece or camera in a straight line without rotation, providing a much more stable and precise platform for achieving and holding critical focus, especially for imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Lunt R\u0026amp;P focuser prevent my view from shifting when I change focus direction?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The \"slop\" or \"backlash\" you feel when changing focus direction on a helical focuser is gone. The rack and pinion gear engagement is direct, meaning any turn of the knob translates immediately into drawtube motion, making fine adjustments much more intuitive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Lunt 1.25\" R\u0026amp;P Focuser better for imaging solar prominences?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Imaging faint, low-contrast solar prominences requires exact focus. A stock helical focuser can shift the framing or lose focus entirely when you lock it down. The stability of the Lunt R\u0026amp;P Focuser ensures that what you see on the screen is what you capture, without unwanted movement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Lunt R\u0026amp;P Focuser handle a camera's weight better than a helical focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mechanical design of a rack and pinion system has a significantly higher load capacity than a simple helical thread. This prevents the drawtube from sagging or slipping under the weight of a dedicated astronomy camera and any associated filters, which is a common failure point for stock focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Lunt focuser difficult to install on my Lunt solar telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is typically straightforward. This focuser is designed as a direct replacement for the stock units on compatible Lunt Solar Systems telescopes. It generally involves unthreading the existing focuser and threading the new R\u0026amp;P unit in its place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Lunt 1.25\" R\u0026amp;P Focuser improve views of the solar chromosphere in a Lunt telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eObserving fine details in the solar chromosphere, like spicules and plage, depends on achieving perfect focus. Because the Lunt R\u0026amp;P Focuser allows for more precise, repeatable adjustments without image shift, you can more easily \"snap\" the view into focus to see the highest possible contrast and detail your telescope's etalon can deliver.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e001-147\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\"\u003eLunt Solar 1.25\" R\u0026amp;P Focuser - Single Speed\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/lunt-solar-system-warranty\" rel=\"noopener\" target=\"_blank\"\u003eLunt Solar Systems 5-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lunt Solar Systems","offers":[{"title":"Default Title","offer_id":50904177672477,"sku":"LSS-001-147","price":237.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Lunt-125inch-RP-Focuser-Single-Speed-1.jpg?v=1769885106"},{"product_id":"lunt-solar-1-25-r-p-focuser-dual-speed","title":"Lunt Solar 1.25\" R\u0026P Focuser - Dual Speed","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.25\" Focuser Size\u003c\/li\u003e\n\u003cli\u003e10:1 Dual-Speed Reduction Fine Focus\u003c\/li\u003e\n\u003cli\u003e6-8 pound (2.7-3.6 kg) Load Capacity\u003c\/li\u003e\n\u003cli\u003e0.5\" Draw Tube Travel\u003c\/li\u003e\n\u003cli\u003eCNC Machined Aluminum and Brass Construction\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\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\u003eLunt Solar 1.25\" R\u0026amp;P Focuser - Dual Speed\u003c\/h2\u003e\n      \u003cp\u003eThe Lunt Solar 1.25\" Dual Speed R\u0026amp;P Focuser delivers the mechanical precision required for high-magnification solar and planetary imaging, where atmospheric seeing dictates focus on a moment-to-moment basis. Its integrated 10:1 reduction knob allows for micro-adjustments with a resolution of ±0.0002\" per rotation, while the robust rack and pinion drive securely manages a 6-8 pound load with less than 0.0005\" of backlash. This CNC-machined focuser provides the critical control needed to snap the finest details into focus within its 0.5\" of draw tube travel.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e10:1 Dual-Speed Reduction: Achieving Critical Focus Down to ±0.0002\"\u003c\/h3\u003e\n      \u003cp\u003eAt high magnifications, the critical focus zone can be microns-thin. This Lunt focuser's 10:1 fine-focus knob translates a full turn into an incredibly small drawtube movement, achieving a fine focus resolution of ±0.0002\". This level of control is essential for teasing out solar granulation, resolving details in Jupiter's cloud bands (GRS), or splitting tight double stars where a standard focuser would overshoot the mark.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eZero-Backlash Rack \u0026amp; Pinion Drive: Supporting a 6-8 Pound Imaging Train\u003c\/h3\u003e\n      \u003cp\u003eUnlike friction-based Crayford designs that can slip under load, this focuser's rack and pinion drive provides a positive, mechanical engagement. It is engineered to support a 6-8 pound (2.7-3.6 kg) payload without flexure or image shift. With backlash adjustable to less than 0.0005 inches, you can change focus direction without encountering dead zones, ensuring your target remains centered and sharp during an imaging run.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eRotatable Body \u0026amp; Brass Compression Ring: 360° Framing Flexibility\u003c\/h3\u003e\n      \u003cp\u003eThe entire focuser body is rotatable, allowing you to orient your eyepiece or camera to the most comfortable angle or to perfectly frame your target without loosening any optical components. The drawtube terminates in a non-marring brass compression ring, which secures your 1.25\" accessories firmly without scratching the barrel, preserving the value and finish of your eyepieces and cameras.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eLunt 10:1 R\u0026amp;P vs. Standard Single-Speed Focusers: An Essential Upgrade\u003c\/h3\u003e\n      \u003cp\u003eWhile a standard single-speed focuser is adequate for low-power viewing, it becomes a point of frustration for high-resolution work. The Lunt 10:1 dual-speed mechanism is not a luxury but a fundamental requirement for critical observation. The coarse knob gets you close, while the fine knob lets you dial in perfect focus without the vibration or over-correction inherent in single-speed systems, making it a mandatory upgrade for any serious solar or planetary observer.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Lunt 10:1 focuser improve imaging the Sun's granulation?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eSolar granulation and other surface details are low-contrast features that are only visible in moments of steady atmospheric seeing. The \u003cstrong\u003e10:1 fine focus ratio\u003c\/strong\u003e allows you to make minute, controlled adjustments with a resolution of \u003cstrong\u003e±0.0002\"\u003c\/strong\u003e, enabling you to precisely hit the point of sharpest focus during those brief, clear moments without introducing vibration or overshooting the mark.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Lunt dual-speed focuser's 6-8 pound capacity handle a binoviewer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The \u003cstrong\u003e6-8 pound (2.7-3.6 kg) load capacity\u003c\/strong\u003e is more than sufficient for most 1.25\" binoviewers and eyepiece pairs. The rack and pinion drive prevents the slippage that can occur with friction-based focusers under the weight of a binoviewer, ensuring your focus remains stable.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of a Rack \u0026amp; Pinion drive on the Lunt focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA \u003cstrong\u003eRack and Pinion (R\u0026amp;P)\u003c\/strong\u003e drive uses geared teeth for a positive mechanical connection between the knob and the drawtube. This design is superior for heavier loads as it physically cannot slip, unlike Crayford focusers which rely on friction. This makes the Lunt R\u0026amp;P ideal for imaging setups or heavy visual accessories.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 0.5\" draw tube travel on the Lunt focuser enough for my eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e0.5\" (12.7mm) travel\u003c\/strong\u003e is designed for fine-tuning focus on Lunt solar telescopes, where the primary focus position is relatively fixed. It is generally sufficient for a set of eyepieces that are close to parfocal. However, if you are switching between accessories with vastly different focal points, you may need to use the telescope's main focuser or extension tubes to achieve initial rough focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"rotatable\" feature on the Lunt 1.25\" focuser do?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe entire focuser body can be rotated 360 degrees relative to its mounting base. This allows you to position the focusing knobs for comfortable access or to rotate your camera to achieve the best composition for your target without having to loosen the camera or eyepiece in the drawtube.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I adjust the backlash on the Lunt 10:1 focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe focuser is designed for minimal backlash of \u003cstrong\u003e\u0026lt;0.0005 inches\u003c\/strong\u003e when properly adjusted. Typically, small set screws on the focuser body allow you to adjust the tension and mesh of the pinion gear against the rack. This ensures immediate response when you change focusing direction, which is critical for tracking moving targets or reacting to changing seeing conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocuser Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDrive System\u003c\/td\u003e\n\u003ctd\u003eRack and Pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFine Focus Ratio\u003c\/td\u003e\n\u003ctd\u003e10:1 reduction\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLoad Capacity\u003c\/td\u003e\n\u003ctd\u003e6-8 pounds (2.7-3.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDraw Tube Travel\u003c\/td\u003e\n\u003ctd\u003e0.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePositioning Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.001 inches (±0.025mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFine Focus Resolution\u003c\/td\u003e\n\u003ctd\u003e±0.0002\" per knob rotation\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.0005 inches when properly adjusted\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRotatable Body\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompression Ring\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eCNC machined Aluminum and Brass\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCoarse Focus Resolution\u003c\/td\u003e\n\u003ctd\u003eStandard rack engagement\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eParameter\u003c\/td\u003e\n\u003ctd\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\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\"\u003eLunt Solar 1.25\" R\u0026amp;P Focuser - Dual Speed\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\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\/lunt-solar-system-warranty\" rel=\"noopener\" target=\"_blank\"\u003eLunt Solar Systems 5-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lunt Solar Systems","offers":[{"title":"Default Title","offer_id":50904190255389,"sku":"LSS-001-148","price":376.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Lunt-125inch-RP-Focuser-Dual-Speed-1_fc0df4eb-df09-4f6d-8337-44ec56ba86e2.jpg?v=1769887049"}],"url":"https:\/\/davidastro.com\/fr\/collections\/lunt-focusers.oembed","provider":"David Astro","version":"1.0","type":"link"}