{"product_id":"starfield-6-f-4-imaging-newtonian-telescope-sf-n6-01","title":"Starfield 6\" f\/4 Imaging Newtonian Telescope with 2\" Dual-Speed Linear Focuser - SF-N6-01 - ON SALE!","description":"\u003cp\u003e\u003cspan\u003eThe Starfield 6\" Imaging Newtonian has a fast f\/4 focal ratio for wide field astrophotography. A cooling fan helps your scope acclimate to the outside temperature so you can start imaging as soon as possible, and a 2\" dual speed linear focuser will handle the weight of a DSLR or dedicated APS-C astronomy camera.  At only 13 pounds, you can mount this OTA on a medium-sized equatorial mount via the included Vixen-style dovetail plate.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong class=\"x-el x-el-span c1-2i c1-2j c1-b c1-a6 c1-3u c1-5m c1-a7\"\u003eOptical Performance \u003c\/strong\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 6\" primary mirror is made of BK7 optical glass, which is known for its thermal stability.  The primary mirror is not only dielectrically coated, but also has a protective layer of SiO2 (quartz) for durability. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe optics are mounted in a cell with six easy-to-use collimation knobs for easy optical alignment.   The exact center of the mirror is marked to make using a laser collimator simple.  The primary mirror cell includes a low noise, long-lifetime cooling fan powered by 8 AA batteries (batteries not included).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAn APS-S DSLR camera or dedicated camera such as the ZWO ASI2600MC-Pro will achieve close to a 2 degree field of view diagonally.  Large objects like Andromeda and the Orion Nebula will fit nicely in the field of view.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong class=\"x-el x-el-span c1-2i c1-2j c1-b c1-a6 c1-3u c1-5m c1-a7\"\u003eFeatures  \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 2\" monorail focuser, with its 10:1 dual speed focusing mechanism, comes standard with the Starfield 6\" Imaging Newtonian.  This heavy-duty focuser provides enough lifting power for a DSLR or CMOS deep sky camera.   A motor can be added for automated control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis scope comes with split tube rings lined with felt to protect the finish.  A Vixen-style dovetail with adjustment screws also comes standard, as does an  8x50mm finder scope and extension tube for visual use.    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is easy to add your own accessories or another dovetail to the top of the OTA with the provided M6 screw holes located on the top of the rings.  The inside of the OTA has a matte black interior finish to reduce stray reflection and increase image contrast.  \u003c\/span\u003e\u003cspan\u003eThe overall length of the OTA extends past the focuser, which also helps prevent reflections and the resulting lower contrast.  \u003cbr\u003e\u003cbr\u003eWorks with\u003cstrong\u003e Optional\u003c\/strong\u003e Starfield Coma Corrector. Visual or Imaging application.\u003cbr\u003eSF-CM-01 .  Sold Separately. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv data-ux=\"ContentBasic\" id=\"e8207332-ecfd-4a76-9f0a-9f6071c1eda6\" class=\"x-el x-el-div x-el c1-1 c1-2 c1-m c1-r c1-4 c1-9a c1-3d c1-4e c1-9b c1-97 c1-b c1-c c1-9c c1-9d c1-d c1-e c1-h c1-i c1-1 c1-2 c1-b c1-c c1-d c1-e c1-h c1-i\"\u003e\n\u003ch4 role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"CONTENT_HEADLINE2_RENDERED\" data-typography=\"HeadingDelta\" class=\"x-el x-el-h4 c1-2a c1-2b c1-2l c1-2m c1-ab c1-3k c1-3l c1-30 c1-31 c1-2d c1-4p c1-ac c1-5m c1-ad c1-ae c1-af c1-ag\"\u003eSPECIFICATIONS\u003c\/h4\u003e\n\u003cdiv data-ux=\"ContentText\" data-aid=\"CONTENT_DESCRIPTION2_RENDERED\" data-typography=\"BodyAlpha\" class=\"x-el c1-1 c1-2 c1-2l c1-2m c1-55 c1-30 c1-31 c1-9e c1-9f c1-9g c1-9h c1-9i c1-9j c1-9k c1-9l c1-9m c1-9n c1-9o c1-9p c1-9q c1-9r c1-9s c1-9t c1-9u c1-9v c1-9w c1-9x c1-9y c1-9z c1-a0 c1-a1 c1-a2 c1-a3 c1-a4 c1-a5 c1-s c1-b c1-1o c1-c c1-3t c1-d c1-5n c1-e c1-h c1-i x-rt\"\u003e\n\u003cp\u003e\u003cspan\u003eOptical design: Newtonian reflector \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAperture: 150mm (6\") \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFocal ratio: f\/4 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFocal length: 600mm \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFocuser: 2\" Linear bearing 2 speed crayford style focuser with 10:1 gear reduction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrimary mirror: 150mm Primary Mirror 92% reflectivity dielectrically coated\/minimum 1\/12th wave, BaK7 glass\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSecondary mirror holder: 4-vane all metal spider \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTube outside diameter: End rings = 9.5\" \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTube length = 21.75\" \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTube weight (with included accessories): 13 lb.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShipped size \/ weight = 26\"x13\"x10\" \/ 17 lb.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e2 Yr manufacturer warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"StarField Optics","offers":[{"title":"Default Title","offer_id":41280305070193,"sku":"SFO-SF-N6-01","price":513.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Starfield_N6_Imagin_OTA.webp?v=1776459296","url":"https:\/\/khanscope.com\/fr-fr\/products\/starfield-6-f-4-imaging-newtonian-telescope-sf-n6-01","provider":"Khan Scope Centre","version":"1.0","type":"link"}