{"product_id":"baader-2-bbhs®-prism-adjustable-star-diagonal-2456118","title":"Baader 2“ BBHS® Prism – Adjustable Star Diagonal (2456118)","description":"\u003ch2 aria-live=\"polite\" class=\"productFullDetail-productName-Qe1 text-lg text-colorDefault text-left lg_text-xl\"\u003eBaader 2“ BBHS\u003cspan class=\"replaceRegistered-registered-gRh\"\u003e®\u003c\/span\u003e Prism – Adjustable Star Diagonal\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2\" BBHS prism diagonal with 2\" ClickLock\u003c\/li\u003e\n\u003cli\u003ePrism made of BaK4 glass with sealed BBHS\u003csup\u003e®\u003c\/sup\u003e coating\u003c\/li\u003e\n\u003cli\u003eCNC-milled black aluminum housing with adjustable wedge for adaptation to individual optical systems (e.g. binocular telescopes)\u003c\/li\u003e\n\u003cli\u003eIncluding \u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/2inch-nosepiece-to-2inch-scta-with-safety-kerf.html\"\u003e 2\" Nosepiece to 2\"\/SCTa – with Safety-Kerf \u003c\/a\u003e \u003cspan class=\"inlinesku\"\u003e(#2408156 , \u003cspan class=\"pricecolor\"\u003e \u003cspan\u003e € 43,- \u003c\/span\u003e \u003c\/span\u003e ) \u003c\/span\u003e with additional grip and security from inadvertent slipping.\u003c\/li\u003e\n\u003cli\u003eProvides greatest reflectance over most spectral range from 390 to 2000nm\u003c\/li\u003e\n\u003cli\u003eBBHS = Broadband Hardsilver coating with dielectric protective overcoating\u003c\/li\u003e\n\u003cli\u003eMuch higher in brilliance than cheap dielectric coatings\u003c\/li\u003e\n\u003cli\u003eIdeal for visual observation and astrophotography with maximum brilliance, even in the infrared spectrum\u003c\/li\u003e\n\u003cli\u003eSuccessor to \u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/baader-2inch-bbhs-prism-star-diagonal-prism-with-2inch-clicklock-clamp.html\"\u003e Baader 2\" BBHS ® Prism Star Diagonal Prism with 2\" ClickLock Clamp \u003c\/a\u003e \u003cspan class=\"inlinesku\"\u003e(#2456117)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"columnGroup-root-fOH pagebuilder-column-group\"\u003e\n\u003cdiv style=\"display: flex;\" class=\"columnGroup-root-fOH pagebuilder-column-line\"\u003e\n\u003cdiv style=\"align-self: stretch; display: flex; flex-direction: column; justify-content: flex-start; width: 58.3333%;\" class=\"column-root-7Tj pagebuilder-column\"\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"text-root-0Rs\" role=\"presentation\"\u003e\n\u003ch4\u003eBaader 2\" BBHS Prism – Adjustable Star Diagonal\u003c\/h4\u003e\n\u003cp\u003eThe star diagonals with prisms from Baader Planetarium offer the highest mechanical and optical quality and are part of a fully modular system. The BBHS® prisms can also be screwed directly onto the focuser or accessories to provide an especially tilt-proof and short optical path connection. Even a 2\" filter can be inserted permanently into the eyepiece-side of the 2\" nose-piece, so that you can still use the 2\" filter thread on the telescope side as usual.\u003c\/p\u003e\n\u003cp\u003eIn contrast to simple prisms, Baader prisms use an additional BBHS®\u0026amp;nbsp;silver layer that is elaborately sealed against corrosion. This layer is responsible for the outstanding brilliance and richer colours compared to simpler prisms. BBHS® is an abbreviation for Broad Band Hard Silver; the silver layer is stabilized long-term by a hard protective coating.\u003c\/p\u003e\n\u003cp\u003eBBHS\u003csup\u003e®\u003c\/sup\u003e provieds a much broader spectral range with \u003cstrong\u003e98-99% reflexion from just above 390nm to 2000nm,\u003c\/strong\u003e and it maintains high reflectivity even with varying viewing angles – the silver layer produces no stray light whatsoever. A trained eye will especially see a greater colour range when using short focal length APO refractors. Particularly in planetary observation at the highest magnifications, a noticeable increase in colour intensity can be easily observed compared to all previous coatings. Additionally, a clear increase in contrast is noticeable due to the absence of any stray light. Together with the CNC-milled aluminium housings, this ensures extremely fast temperature adaptation and image stability. As a general guideline, prisms are recommended for telescopes with a focal ratio of about f\/6 to f\/7 or slower, while  \u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/baader-2inch-bbhs-mirror-adjustable-star-diagonal.html\" tabindex=\"0\"\u003eBBHS\u003csup\u003e®\u003c\/sup\u003e mirrors\u003c\/a\u003e are preferable for faster optical systems.\u003c\/p\u003e\n\u003cp\u003eIn addition to the sealed BBHS\u003csup\u003e®\u003c\/sup\u003erear-surface coating, the prisms feature the proven Phantom Coating\u003csup\u003e® \u003c\/sup\u003eGroup anti-reflection treatment.\u003c\/p\u003e\n\u003cp\u003eThe precisely fitting \u003cstrong\u003e2\" ClickLock\u003csup\u003e® \u003c\/sup\u003eeyepiece clamp \u003c\/strong\u003esecurely holds even heavy accessories with a simple 20° twist. By cleverly using leverage, the clamping force is multiplied many times. The inserted accessory is held on three sides, similar to a quick-release chuck, preventing any tilting movement. Every eyepiece or measuring device is automatically aligned parallel to the optical axis – even in the case of diameter tolerances.\u003c\/p\u003e\n\u003cp\u003eThe BBHS\u003csup\u003e® \u003c\/sup\u003ePrism is mounted in a \u003cstrong\u003eCNC-machined aluminium housing\u003c\/strong\u003e and rests stress-free on an adjustable cradle. Just like a high-quality refractor objective, the prism can also be collimated. This allows the realisation of fully adjustable systems, for example for the construction of binocular telescopes. As with a premium refractor, you will not need to change the collimation during normal use: the 3-point alignment is set at our factory so that the image shows no noticeable rotation around its centre when the star diagonal is rotated by 180° in a correctly aligned eyepiece clamp. Optical and mechanical axes are perfectly matched on our optical test benches. Therefore, make sure to rule out all other potential sources of error – such as a tilted focuser – before adjusting the collimation.\u003c\/p\u003e\n\u003cp\u003eWhen a BBHS\u003csup\u003e®\u003c\/sup\u003ePrism leaves our factory, the optical and mechanical axes are aligned rotationally symmetrically with each other on the optical bench. Please note that once the collimation is changed, the warranty on the factory collimation of the BBHS\u003csup\u003e®\u003c\/sup\u003e prism becomes void. All other warranty coverage remains unaffected.  Should you notice immediately after purchase that the optical axis is not correct, please contact the dealer from whom you bought the device without delay.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Details\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2456118\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEAN Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4047825059031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet weight (kg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Specifications\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAR-Coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhantom Coating® Group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlass path\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage Orientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eErect image, Mirror inverted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStar Diagonal Prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical length (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReflection surface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSealed BBHS coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMECHANICAL SPECIFICATIONS\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping System\u003c\/td\u003e\n\u003ctd\u003eClickLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeflection angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/camera-sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm), M55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM48, 2\"\/SCT Thread (50.8mm), M55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm), S58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box \u003cimg\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2“ BBHS® Prism – Adjustable Star Diagonal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003eBaader 2-year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca title='Baader Star Diagonals (T-2 and 2\")' href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/baader_star_diagonals_t_2_and_2_f54648e9-264f-463b-9bfe-cd258f31bbd4.pdf?v=1612089311\" target=\"_blank\"\u003eBaader Star Diagonals (T-2 and 2\")\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"ClickLock clamps - Time to change the system\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/clicklock_clamps_time_to_change_the_system.pdf?v=1612089532\" target=\"_blank\"\u003eClickLock clamps - Time to change the system\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":48585772728549,"sku":"BAA-2456118","price":765.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Untitled_f0a9147c-ca5f-4540-8e06-9834d0d71779.png?v=1777045253","url":"https:\/\/istronomyplus.com\/products\/baader-2-bbhs%c2%ae-prism-adjustable-star-diagonal-2456118","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}