{"title":"14\" Telescopes \u0026 Optics","description":"","products":[{"product_id":"36-cm-rowe-ackermann-schmidt-astrograph-rasa-36-v2-optical-tube-assembly-cge-dovetail","title":"36 cm Rowe-Ackermann Schmidt Astrograph (RASA 36) V2 Optical Tube Assembly (CGE Dovetail)","description":"\u003cp\u003eThe Rowe-Ackermann Schmidt Astrograph (RASA) V2 is a cost-effective optical system for space surveillance, \u003ca href=\"https:\/\/www.celestron.com\/blogs\/news\/celestron-s-rasa-36-protecting-global-communications-systems-and-producing-world-class-astroimages\"\u003eSpace Situational Awareness (SSA)\u003c\/a\u003e, other scientific applications, and advanced wide-field astroimaging. It offers unprecedented value in aperture, speed, field of view, and optical performance. The RASA design has a convenient external prime-focus image capture location with a flat focal plane, providing small spot sizes to the edge of a wide field. Images are free of optical defects like field curvature, off-axis coma, and astigmatism.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Performance \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 36 cm aperture version is the largest RASA Celestron manufactures; it is the biggest and fastest (f\/2.2) optical instrument of its kind available “off-the-shelf.” Unlike most telescopes, which only focus visible light (400-700 nm), the RASA 36 cm focuses an extended spectral range (400-900 nm), allowing a brighter signal to be detected by a camera sensor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRASA 36 V2 features the new Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing minimizes focus shift (unwanted lateral movement of the primary mirror during focusing, which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is compatible with the optional Celestron Focus Motor (#94155-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust-filtered optical tube. RASA 36 cm’s ample back-focus distance (77.5 mm) accommodates a wide variety of imaging sensors. You may add a custom camera adapter for a field of view up to 4.4 degrees.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eAdditional Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCelestron’s proprietary XLT coatings, consisting of high-transmission multi-coatings for lenses and high-reflectivity aluminum coatings, ensure good light throughput for the optical system.\u003c\/li\u003e\n\u003cli\u003eIntegrated cooling fan helps optics cool down to ambient temperature and pulls air through vents with micromesh to prevent dust ingress.\u003c\/li\u003e\n\u003cli\u003eDual dovetail bars offer flexibility to mount the optical tube and conveniently attach additional accessories. Accommodates “CGE\/Losmandy” style dovetails.\u003c\/li\u003e\n\u003cli\u003eTwo sets of 2x threaded insert holes in the rear cell provide additional mounting options\u003c\/li\u003e\n\u003cli\u003eMove and mount your optical tube with ease with carrying handles on the rear cell.\u003c\/li\u003e\n\u003cli\u003eAlthough not normally needed, there are 3x sets of push-pull screws to adjust the lens group to achieve optical alignment for the entire system.\u003c\/li\u003e\n\u003cli\u003eIncludes M48 camera adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant freight requirement – \u003c\/strong\u003eRASA 36 cm is a professional-caliber, high-precision instrument. Our technicians manufacture and align each RASA 36 cm to an exacting standard to provide exceptional optical performance. We package the telescope to ensure it retains alignment and performance during transport. However, due to the weight, size, and known stresses of shipping via parcel service, Celestron has determined that the ideal transport is a palletized delivery via LTL truck freight. For all domestic deliveries, Celestron will ship via this method. We also \u003cstrong\u003erequire \u003c\/strong\u003ethis shipping method for all deliveries from Celestron dealers to end customers.    \u003cbr\u003e\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":46381990904065,"sku":"91078-CGL","price":12499.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/6857\/8817\/files\/91078_Rowe-Ackermann_Schmidt_Astrograph_36cm_v2_01.jpg?v=1749501179"},{"product_id":"edgehd-14-optical-tube-assembly-cge-dovetail","title":"EdgeHD 14\" Optical Tube Assembly (CGE Dovetail)","description":"\u003cp\u003e\u003cstrong\u003eSee the Universe in HD\u003c\/strong\u003e\u003cbr\u003eEdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrue Astrograph Quality\u003c\/strong\u003e\u003cbr\u003eMany optical designs that advertise themselves as \"astrographs\" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImproved Performance\u003c\/strong\u003e\u003cbr\u003eSuperior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Features\u003cbr\u003e\u003c\/strong\u003eIn addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMirror clutches\u003c\/strong\u003e - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube vents\u003c\/strong\u003e - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 50-mesh filter guaranteed to let warm air out without letting dust in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastar versatility\u003c\/strong\u003e - EdgeHD is the most versatile imaging telescope available today. At its native f\/11, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f\/2 wide field imaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually Tested\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eEvery EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":46382084686081,"sku":"91060-XLT-CGL","price":8599.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/6857\/8817\/files\/91060-xlt_cge_pro_1400_hd_1.jpg?v=1749504001"},{"product_id":"c14-optical-tube-assembly-cge-dovetail","title":"C14 Optical Tube Assembly (CGE Dovetail)","description":"\u003cp\u003eThe Celestron C14-AF XLT optical tube is a world-class instrument that delivers a level of detail to all your favorite deep sky objects. This observatory-ready instrument the largest in its class with over three times the light gathering power of an 8\" telescope. With this OTA, you can see amazing detail on the surface of Jupiter, resolve details on the surface of Mars, see Cassini's Division in the rings of Saturn, and even the distant planets of Uranus and Neptune.\u003c\/p\u003e\n\u003cp\u003eThe C14 packs serious light gathering ability into its durable aluminum optical tube. It’s an ideal instrument for serious astrophotography, providing high-contrast views even at very high magnifications. It is equipped with Celestron’s patented StarBright® XLT optical coatings, which visibly increase contrast and light transmission for brighter deep space images and shorter exposure times.\u003c\/p\u003e\n\u003cp\u003eThe tube offers a focal ratio of f\/11 with the added versatility of Fastar (see below). You can also pair it with the f\/6.3 focal reducer for even more astroimaging options.\u003c\/p\u003e\n\u003cp\u003eThis flagship OTA can be mounted on a multitude of computerized telescope mounts thanks to its CGEM-style dovetail bar. It’s sure to take your visual observing and imaging to the next level.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFastar Technology\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn 1997, CCDs were making a name for themselves in the astrophotography world, quickly supplanting traditional film photography thanks to their speed and convenience. This was the year that Celestron joined forces with the Santa Barbara Instruments Group (SBIG) to produce Fastar, a revolutionary add-on to Celestron’s hugely popular Schmidt-Cassegrain (SCT) optical system.\u003c\/p\u003e\n\u003cp\u003eWith Fastar, the SCT’s secondary mirror can be removed and replaced with a field-flattening lens assembly (sold separately by third party manufacturers) so that a CCD camera can be used in the front of the telescope at the f\/2 focus of the instrument’s primary mirror. The potential of the Fastar system is staggering: exposures are 25 times shorter than if the camera was placed at the instrument’s native f\/11 focus. Imagers can capture galaxies and nebulae with exposures of just 30 seconds.\u003c\/p\u003e\n\u003cp\u003eFor more information about our Fastar technology,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/fastar-technology\"\u003evisit here\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.celestron.com\/university\/astronomy\/starbright-xlt-optical-coating-system\"\u003e\u003cstrong\u003eStarBright XLT coatings\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eStarBright XLT is Celestron’s revolutionary optical coating system. It consistently outperforms all other coatings in the commercial telescope market. There are three major components that make up our StarBright XLT high-transmission optical system design:\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnique enhanced multi-layer mirror coatings made from precise layers of aluminum, SiO2 (quartz), TiO2 (titanium dioxide), and SiO2 (silicon dioxide). Reflectivity is fairly flat across the spectrum, optimizing it for both imaging and visual observing.\u003c\/li\u003e\n\u003cli\u003eMulti-layer anti-reflective coatings made from precise layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Hafnium—a rare element that costs nearly $2,000 per kilogram—gives us a wider band pass than the titanium used in competing coatings.\u003c\/li\u003e\n\u003cli\u003eHigh-transmission water white glass is used instead of soda lime glass for the corrector lens. Water white glass transmits about 90.5% of light without anti-reflective coatings; that’s 3.5% better than uncoated soda lime glass. When water white glass is used in conjunction with StarBright XLT’s anti-reflective coatings, the average transmission reaches an astonishing 97.4.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese three components make StarBright XLT one of the finest coatings available. For more information about our patented StarBright XLT coatings, visit\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.celestron.com\/university\/astronomy\/starbright-xlt-optical-coating-system\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":46382088323329,"sku":"91038-XLT-CGL","price":7241.66,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/6857\/8817\/files\/91038-XLT_CGE_Pro_1400_Fastar_1.jpg?v=1749504025"},{"product_id":"cgx-l-edgehd-1400-telescope","title":"CGX-L Equatorial 1400 HD Telescope","description":"\u003cp\u003eCelestron's CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Capable of carrying Celestron’s largest optical tubes with ease, CGX-L is designed for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, compact design, and innovative features that fully support large telescopes, imaging kits, and the latest in wireless tech accessories.\u003c\/p\u003e\n\u003cp\u003eKey design goals included larger 144mm diameter worm wheels which provide smoother operation and can more accurately drive heavier loads, longer 270mm dovetail saddle to support larger optical tubes, remote operation friendly features such as home and limit optical sensors, easier polar alignment adjustments, and better cable management overall. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and easier to transport. COMPACT. ERGONOMIC. INNOVATIVE.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":46382157693185,"sku":"12077-CGL","price":11249.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/6857\/8817\/files\/12077_-CGX-L_EdgeHD_14_Kit_01.jpg?v=1749504861"},{"product_id":"cgx-l-sct-1400-telescope","title":"CGX-L Equatorial 1400 Schmidt-Cassegrain Telescope","description":"\u003cp\u003eCelestron's CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Capable of carrying Celestron’s largest optical tubes with ease, CGX-L is designed for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, Fastar compatible, compact design, and innovative features that fully support large telescopes, imaging kits, and the latest in wireless tech accessories.\u003c\/p\u003e\n\u003cp\u003eKey design goals included larger 144mm diameter worm wheels which provide smoother operation and can more accurately drive heavier loads, longer 270mm dovetail saddle to support larger optical tubes, remote operation friendly features such as home and limit optical sensors, easier polar alignment adjustments, and better cable management overall. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and easier to transport. COMPACT. ERGONOMIC. INNOVATIVE.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":46382157922561,"sku":"12072-CGL","price":9999.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/6857\/8817\/files\/12072_CGX-L_SCT_14_Kit_01.jpg?v=1749504869"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/6857\/8817\/collections\/14-Telescopes-_-Optics_1200x310_05c178a0-32e4-4894-9b16-c4d322ca4517.jpg?v=1789946234","url":"https:\/\/celestron.co.uk\/collections\/14-telescopes-optics.oembed","provider":"Celestron Global Limited","version":"1.0","type":"link"}