{"product_id":"celestron-90-dielectric-star-diagonal-with-twist-lock-2","title":"Celestron 90° Dielectric Star Diagonal with Twist-Lock (2\")","description":"\u003ch2\u003e\u003cstrong\u003eCelestron 90° Dielectric Star Diagonal with Twist-Lock (2\") – High-Performance Optics for Enhanced Viewing\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch4\u003e\u003cstrong\u003ePremium Dielectric-Coated Mirror for Maximum Light Transmission\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eCelestron 90° Dielectric Star Diagonal\u003c\/strong\u003e is a \u003cstrong\u003ehigh-quality accessory designed to improve the performance of your telescope\u003c\/strong\u003e by delivering \u003cstrong\u003ebrighter, sharper images\u003c\/strong\u003e with enhanced contrast. Featuring a \u003cstrong\u003e2-inch eyepiece holder\u003c\/strong\u003e with a \u003cstrong\u003e1.25-inch reducer adapter\u003c\/strong\u003e, this diagonal is \u003cstrong\u003ecompatible with a wide range of eyepieces and accessories\u003c\/strong\u003e, making it an \u003cstrong\u003eessential addition for deep-sky observation and planetary viewing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBuilt with \u003cstrong\u003eBK7 diffraction-limited optics\u003c\/strong\u003e, the \u003cstrong\u003e58-layer dielectric mirror coating\u003c\/strong\u003e ensures \u003cstrong\u003eover 99% reflectivity\u003c\/strong\u003e, allowing \u003cstrong\u003emaximum light transmission to your eye\u003c\/strong\u003e. This is particularly beneficial for \u003cstrong\u003efaint deep-sky objects, planetary details, and astrophotography\u003c\/strong\u003e, where every photon counts.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003etwist-lock eyepiece holder\u003c\/strong\u003e eliminates the need for traditional thumbscrews, ensuring \u003cstrong\u003ea secure, well-centred fit with perfect optical alignment\u003c\/strong\u003e. Additionally, the \u003cstrong\u003ealuminum housing with an anodized black finish\u003c\/strong\u003e provides \u003cstrong\u003edurability, precision, and minimal internal reflections\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eDielectric-Coated BK7 Mirror for Over 99% Reflectivity\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e58-layer dielectric coatings\u003c\/strong\u003e deliver \u003cstrong\u003esuperior brightness and clarity\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximizes light transmission\u003c\/strong\u003e, essential for \u003cstrong\u003edeep-sky observation and planetary detail\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiffraction-limited optics\u003c\/strong\u003e ensure \u003cstrong\u003ehigh precision and minimal light loss\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003e2\" Eyepiece Holder with 1.25\" Reducer for Versatility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports both 2” and 1.25” eyepieces\u003c\/strong\u003e for \u003cstrong\u003egreater flexibility with accessories\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with a variety of Barlows, filters, and imaging gear\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eTwist-Lock Mechanism for Secure, Centered Eyepieces\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwist-lock design eliminates the need for thumbscrews\u003c\/strong\u003e, providing \u003cstrong\u003ea more secure grip\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsures precise optical alignment\u003c\/strong\u003e for \u003cstrong\u003esharper, more accurate views\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eIncludes SCT Adapter for Secure Telescope Connection\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with both 2” drawtubes and Schmidt-Cassegrain telescope (SCT) backs\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvides a stable, low-profile connection for optimal performance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003ePrecision-Machined Anodized Aluminum Housing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction ensures longevity and reliability\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat black interior with blackened threads reduces reflections and glare\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFilter Threads on Nosepiece for Easy Compatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasily attach 2” filters directly to the diagonal for enhanced viewing\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for reducing glare, enhancing contrast, or filtering specific wavelengths\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece Compatibility:\u003c\/strong\u003e 2\" \u0026amp; 1.25\" with included reducer adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMirror Type:\u003c\/strong\u003e BK7 diffraction-limited optics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoatings:\u003c\/strong\u003e 58-layer dielectric with over 99% reflectivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece Holder:\u003c\/strong\u003e Twist-lock design for precise alignment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Compatibility:\u003c\/strong\u003e 2\" drawtubes \u0026amp; standard SCT visual backs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Black anodized aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Finish:\u003c\/strong\u003e Flat black with blackened threads for reduced reflections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Compatibility:\u003c\/strong\u003e 2” filters (threaded on nosepiece)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat’s Included?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e✔ \u003cstrong\u003eCelestron 90° Dielectric Star Diagonal (2\")\u003c\/strong\u003e\u003cbr\u003e✔ \u003cstrong\u003e1.25” Reducer Adapter\u003c\/strong\u003e\u003cbr\u003e✔ \u003cstrong\u003e2” Nosepiece for Standard Drawtubes\u003c\/strong\u003e\u003cbr\u003e✔ \u003cstrong\u003eThreaded SCT Adapter\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose the Celestron 90° Dielectric Star Diagonal?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e✔ \u003cstrong\u003eDielectric-coated mirror with 99% reflectivity for brighter, sharper images\u003c\/strong\u003e.\u003cbr\u003e✔ \u003cstrong\u003eTwist-lock eyepiece holder ensures secure, precise optical alignment\u003c\/strong\u003e.\u003cbr\u003e✔ \u003cstrong\u003eVersatile compatibility with both 2” and 1.25” eyepieces\u003c\/strong\u003e.\u003cbr\u003e✔ \u003cstrong\u003eDurable, lightweight anodized aluminum construction\u003c\/strong\u003e.\u003cbr\u003e✔ \u003cstrong\u003eIncludes an SCT adapter for secure telescope connections\u003c\/strong\u003e.\u003cbr\u003e✔ \u003cstrong\u003eIdeal for deep-sky observations, planetary viewing, and astrophotography\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eUpgrade Your Telescope’s Performance with High-Quality Optics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCelestron 90° Dielectric Star Diagonal\u003c\/strong\u003e is a \u003cstrong\u003emust-have accessory for serious astronomers\u003c\/strong\u003e, providing \u003cstrong\u003ebrighter, more detailed views with minimal light loss\u003c\/strong\u003e. Whether you’re \u003cstrong\u003eobserving planets, deep-sky objects, or capturing stunning astrophotography\u003c\/strong\u003e, this \u003cstrong\u003epremium-quality diagonal ensures the best possible optical performance\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":40803504357473,"sku":"050234935739","price":279.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/products\/1566293428_IMG_1238110.jpg?v=1682333421","url":"https:\/\/carmarcameras.mom\/products\/celestron-90-dielectric-star-diagonal-with-twist-lock-2","provider":"Carmarthen Camera Centre","version":"1.0","type":"link"}