{"product_id":"ts-optics-telescopio-n-203-800-photon-ota","title":"Telescope N 203\/800 Photon metal tube OTA","description":"\u003cb itemprop=\"description\"\u003e\u003cspan\u003eThe PHOTON Newtonian reflector with 203mm aperture and f\/4 focal ratio is a fast astrograph for astrophotography and an impressive rich-field telescope.\u003c\/span\u003e\u003c\/b\u003e\n\u003cul\u003e\n\n\u003cli\u003e \u003cspan\u003eAperture 203 mm \/ focal length 800 mm \/ focal ratio F4\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003eHigh quality parabolic primary mirror with 94% reflectivity for a brighter image.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003eLarge secondary mirror with 70 mm diameter for a well-illuminated image field; Also suitable for cameras with full size sensors.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003ePrecise 2\" MONORAIL focuser, 1:10 double speed for precise focusing; motorized focus is optionally available.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003eAdjustable primary and secondary mirror cells made of metal, useful collimation aid on the primary mirror.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003eFocus position ready for observing with all eyepieces and for astrophotography\u003c\/span\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\u003cspan\u003eExtensive scope of delivery: 8x50 scope, tube rings, 2\" extension tube for sighting, dovetail bar.\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003eReady to photograph and observe faster through the primary mirror fan.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003eThe dovetail bar supplied is the red one in the penultimate image, not the black one in the image in the scope of delivery.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003cspan\u003e\u003cspan\u003eAstrophotography is made easy for you with this compact TS-PHOTON series Newtonian. Due to the aperture ratio of f\/4, this astrograph provides pure speed and therefore short exposure times. Of course, we also offer the matching TS SUPERFLAT coma corrector. Thus, this Newtonian PHOTON becomes a very good astrograph.\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e \u003cbr\u003e\u003cspan\u003eImmerse yourself in the world of deep sky observing with the PHOTON 8\" f\/4. The large aperture and improved 94% reflectivity offer unforgettable observations beyond the solar system. Observe exciting details, such as galaxy spiral arms or fine structures in planetary nebulae.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e \u003cspan\u003eThe Newtonian is still compatible with wearable mounts like the Celestron Advanced VX GoTo mount or the Skywatcher EQ5 mount. Purely visual observers can also use an altazimuth mount. You can find the appropriate mounts in the \"Recommended Accessories\" section.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eGeneral information and characteristics of TS-PHOTON Newtonian telescopes:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eFast parabolic optics with excellent contrast and very good sharpness for planetary observations.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eHigh quality 2\" monorail focuser with 1:10 dual speed for 2\" and 1.25\" accessories.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\u003cspan\u003e\u003cspan\u003ePerfect focus position for DSLR and other cameras.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eAll popular 1.25\" and 2\" eyepieces can be used without problems.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eBrighter image through improved 94% reflectivity of the primary and secondary mirror.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eThe motorized focus can be adapted at any time.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eA 0.5mm thick stainless steel spider provides stability. Astrophotographers will envy you for the delicate, sharp peaks around bright stars.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eThe ventilation activates because the primary mirror provides significantly faster cooling.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cspan\u003eAdjustable primary mirror cell and secondary cell completely made of metal.\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003cspan\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/span\u003e \u003c\/p\u003e\n\n\u003ctable cellpadding=\"4\" style=\"width: 344.906px;\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n \u003cb\u003e\u003cspan\u003eOpening\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e203mm (8\")\u003c\/span\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"stpage-bg\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e \n\u003cb\u003e\u003cspan\u003eFocal distance\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e800mm\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n\u003cb\u003e\u003cspan\u003eFocal ratio\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003ef\/4\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"stpage-bg\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n \u003cb\u003e\u003cspan\u003emain mirror\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003eBK7 parabolic primary mirror with 94% reflection and quartz protective layer\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n\u003cb\u003e\u003cspan\u003esecondary mirror\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e70mm minor axis with 94% improved reflection and quartz protective layer\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"stpage-bg\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n \u003cb\u003e\u003cspan\u003e100% illuminated field\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e25 mm - ideal for APS-C format sensors with suitable coma corrector\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n\u003cb\u003e\u003cspan\u003e90% illuminated field\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e38mm so also suitable for larger sensors (flats recommended)\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"stpage-bg\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n \u003cb\u003e\u003cspan\u003eResolution\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e0.58 arc seconds\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n\u003cb\u003e\u003cspan\u003eLimiting magnitude visually\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e13.3 caliber\u003c\/span\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"stpage-bg\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e \n\u003cb\u003e\u003cspan\u003eFocuser\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e2\" Crayford focuser, double speed, 1.25\" adapter and compression rings\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n\u003cb\u003e\u003cspan\u003eTube weight\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003e8.4 kg with tube rings and finder\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"stpage-bg\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n \u003cb\u003e\u003cspan\u003eTube dimensions\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003eLength 730mm, diameter 230mm\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"bgltblue\"\u003e\n\n\u003ctd class=\"pr9\" style=\"width: 140px;\"\u003e\n\n\u003cb\u003e\u003cspan\u003eTube material\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003e:\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\u003ctd style=\"width: 174.906px;\"\u003e \u003cspan\u003eSteel\u003c\/span\u003e \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e","brand":"TS Optics","offers":[{"title":"Default Title","offer_id":40327802159148,"sku":"57997","price":832.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/6198\/6860\/products\/TS-Optics-Telescopio-N-203-800-Photon-OTA_5.webp?v=1653024339","url":"https:\/\/astrotelescopios.com\/en-eu\/products\/ts-optics-telescopio-n-203-800-photon-ota","provider":"Astro Telescopios","version":"1.0","type":"link"}