{"product_id":"orion-2-twist-tight-dielectric-mirror-star-diagonal-40902","title":"Orion 2\" Twist-Tight Dielectric Mirror Star Diagonal - 40902","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eOrion 2\" Twist-Tight Dielectric Mirror Star Diagonal - 40902\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThe Orion 2\" Twist-Tight Dielectric Mirror Star Diagonal delivers bright, high-contrast views and a comfortable 90° viewing angle for astronomical observing. Featuring a premium dielectric-coated mirror with 99% reflectivity, this diagonal minimizes light loss while providing excellent image brightness and clarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts innovative Twist-Tight locking mechanism securely holds eyepieces and accessories in place without traditional thumbscrews. The self-centering design applies even pressure around the eyepiece barrel, helping maintain proper optical alignment while preventing scratches and marks. Ideal for refractor and compatible Cassegrain-style telescopes equipped with a 2\" focuser or visual back, this diagonal combines high-quality optics with durable construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e99% Reflective Dielectric Mirror:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-efficiency dielectric coatings maximize light transmission to the eyepiece, delivering bright, detailed, and high-contrast views.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTwist-Tight Locking Mechanism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Securely grips eyepieces using a convenient rotating collar, eliminating traditional thumbscrews and helping prevent scratches.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelf-Centering Eyepiece Holder:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Applies even pressure around the eyepiece barrel to maintain consistent optical alignment and a secure fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e90° Viewing Angle:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides a more comfortable observing position, especially when viewing objects high in the night sky.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatible with 2\" and 1.25\" Eyepieces:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Includes a 2\"-to-1.25\" step-down adapter with its own Twist-Tight locking mechanism for convenient use with both eyepiece sizes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDurable Aluminum Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Features a precision-machined, anodized aluminum housing for strength, stability, and long-lasting performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInternal Glare Reduction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Machine-threaded internal baffles help suppress stray light and unwanted reflections for improved image contrast.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2\" Filter Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The threaded 2\" nosepiece accepts standard 2\" astronomy filters, allowing filters to remain installed when switching eyepieces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEasy Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The large, knurled Twist-Tight collars provide a comfortable grip, even when wearing gloves during cold-weather observing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Orion Telescopes \u0026amp; Binoculars\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 40902\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Mirror Star Diagonal\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDiagonal Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2\" (50.8 mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eViewing Angle:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 90°\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMirror Coating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dielectric\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReflectivity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 99%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEyepiece Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2\" Twist-Tight\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTelescope Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2\" Slip-Fit Barrel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEyepiece Adapter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2\"-to-1.25\" Twist-Tight Adapter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHousing Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Machined and Anodized Aluminum\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFilter Threads:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2\" Nosepiece\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecommended Telescopes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Refractors and compatible Cassegrain-style telescopes with 2\" connections\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOrion 2\" Twist-Tight Dielectric Mirror Star Diagonal\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e2\"-to-1.25\" Twist-Tight Eyepiece Adapter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtective Dust Caps\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatibility Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Requires a compatible 2\" focuser or visual back. This diagonal is not recommended for Newtonian reflector telescopes.\u003c\/span\u003e\u003c\/p\u003e","brand":"Orion","offers":[{"title":"Default Title","offer_id":50772309377243,"sku":"40902","price":254.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0224\/6770\/6960\/files\/orion-accessories-orion-2-twist-tight-dielectric-mirror-star-diagonal-40902-1263210268.jpg?v=1792190771","url":"https:\/\/telescopescanada.ca\/fr\/products\/orion-2-twist-tight-dielectric-mirror-star-diagonal-40902","provider":"Telescopes Canada","version":"1.0","type":"link"}