{"product_id":"edgehd-14-optical-tube-assembly-91060-xlt","title":"Celestron EdgeHD 14 Optical Tube Assembly - 91060-XLT","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eAbout the Celestron EdgeHD 14 Optical Tube Assembly...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003eThe EdgeHD is an aplanatic Schmidt \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e designed to produce 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, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTrue Astrograph Quality\u003c\/b\u003e - Many optical designs that advertise themselves as \"astrograph\" quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. EdgeHD \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other 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 \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eImproved Performance\u003c\/b\u003e - Superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e Starbright XLT Coatings coupled with Celestron'''s StarBright XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMechanical Features\u003c\/b\u003e - In addition to Celestron'''s new optimized optical design, the EdgeHD tube has been redesigned to make sure you get the most from your \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e optics each and every night.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMirror Clutches\u003c\/b\u003e - Flexible tension clutches hold the mirror in place and reduce image shift when rotating the tube around the mount. The flexible rods allow the mirror to be held in place without putting any force or pressure on the \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e mirror assembly, keeping the image centered in the eyepiece (or chip).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTube Vents\u003c\/b\u003e - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 60 micron micro-mesh filter guaranteed to let warm air out without letting dust in.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFastar Versatility\u003c\/b\u003e - The EdgeHD is the most versatile imaging \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e available today. At its native f\/10 you can achieve the image scale necessary to capture the smallest of deep sky objects. With the optional reducer lens (coming soon) you can increase your field of view without sacrificing optical performance. A barlow gives you the added power for high resolution planetary, lunar and solar imaging. And of course all EdgeHD optical tubes are Fastar compatible for ultra fast f\/2 wide field imaging. Each \u003ca href=\"http:\/\/khanscope.com\/newEquipList.cfm?catID=1\u0026amp;subCatID=1\u0026amp;manID=2\" target=\"blank\"\u003eCelestron Telescope\u003c\/a\u003e tube has been fitted with a removable secondary mirror and are opto-mechanically aligned on a laser bench to ensure they are axially symmetric in any configuration.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAdditional \u003ca href=\"http:\/\/khanscope.com\/accessList.cfm?catID=3\u0026amp;subcatID=9\" target=\"blank\"\u003eCelestron Telescope Eyepieces\u003c\/a\u003e, \u003ca href=\"http:\/\/khanscope.com\/accessList.cfm?catID=3\u0026amp;subcatID=13\" target=\"blank\"\u003eCelestron Telescope Mounts and Tripods\u003c\/a\u003e, and \u003ca href=\"http:\/\/khanscope.com\/accessList.cfm?catID=3\u0026amp;subcatID=15\" target=\"blank\"\u003eCelestron Telescope Accessories\u003c\/a\u003e are readily available!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eCelestron EdgeHD 14 Optical Tube Assembly Features...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEdgeHD 14\" Optical Tube Assembly\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eAluminum Optical Tube\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eCelestron premium StarBright XLT coatings\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e3910 mm focal length (f\/11)\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e23mm Axiom 2\" eyepiece included\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eVisual back allows for use with 1.25\" accessories\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e9x50 finderscope to help accurately find objects\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eStar diagonal provides more comfortable viewing position when observing objects that are high in the sky\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eMirror Support Knobs hold the mirror in place and reduces image shift during imaging.\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube vents with integrated 60 micron mesh filter allowing hot air to be released from behind the primary mirror.\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eFastar Compatible optical tubes are equipped with a removable secondary mirror for fast f\/2 ccd imaging\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes dovetail rail compatible with CGE mount\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch2\u003eCelestron EdgeHD 14 Optical Tube Assembly Specifications...\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cp\u003eOptical Design: EdgeHD\u003c\/p\u003e\n\u003cp\u003eAperture (mm): 355.6 mm (14 in)\u003c\/p\u003e\n\u003cp\u003eFocal Length (mm): 3910 mm (154 in)\u003c\/p\u003e\n\u003cp\u003eFocal Ratio: f\/11\u003c\/p\u003e\n\u003cp\u003eEyepiece 1 (mm): 23 mm (0.91 in)\u003c\/p\u003e\n\u003cp\u003eMagnification 1: 170 x\u003c\/p\u003e\n\u003cp\u003eFinderscope: 9x50\u003c\/p\u003e\n\u003cp\u003eStar Diagonal: 2\" w\/1.25\" adapter\u003c\/p\u003e\n\u003cp\u003eOptical Tube: Aluminum\u003c\/p\u003e\n\u003cp\u003eHighest Useful Magnification: 840 x\u003c\/p\u003e\n\u003cp\u003eLowest Useful Magnification: 51 x\u003c\/p\u003e\n\u003cp\u003eLimiting Stellar Magnitude: 15.3\u003c\/p\u003e\n\u003cp\u003eResolution (Rayleigh): 0.39 arc seconds\u003c\/p\u003e\n\u003cp\u003eResolution (Dawes): 0.33 arc seconds\u003c\/p\u003e\n\u003cp\u003eLight Gathering Power (Compared to human eye): 2581 x\u003c\/p\u003e\n\u003cp\u003eSecondary Mirror Obstruction: 4.5 in (114 mm)\u003c\/p\u003e\n\u003cp\u003eSecondary Mirror Obstruction by Diameter: 32 %\u003c\/p\u003e\n\u003cp\u003eSecondary Mirror Obstruction by Area: 10 %\u003c\/p\u003e\n\u003cp\u003eOptical Coatings: StarBright \/ XLT\u003c\/p\u003e\n\u003cp\u003eOptical Tube Length: 31 in (787 mm)\u003c\/p\u003e\n\u003cp\u003eOptical Tube Weight: 46 lbs (21 kg)\u003c\/p\u003e\n\u003cp\u003eDovetail Compatibility: CGE Mount\u003c\/p\u003e\n\u003cp\u003eCelestron Product Number: 91060-XLT\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\u003ciframe width=\"320\" height=\"180\" src=\"\/\/www.youtube.com\/embed\/77dLKd5g2_M?feature=player_embedded\" frameborder=\"0\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/center\u003e","brand":"Celestron","offers":[{"title":"Default","offer_id":10554883969,"sku":"CEL-91060-XLT","price":6140.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/2164-1-thumb.jpeg?v=1776459139","url":"https:\/\/khanscope.com\/en-fr\/products\/edgehd-14-optical-tube-assembly-91060-xlt","provider":"Khan Scope Centre","version":"1.0","type":"link"}