{"product_id":"ts-optics-unc-f-4-newtonian-10","title":"TS-Optics UNC f\/4 Newtonian - 10\"","description":"\u003cp\u003e\u003cstrong\u003eThe TS Optics UNC Newtonian series offers an alternative to Newtonians made in the far east. With these telescopes you do not have to settle for any compromises. UNC stands for Universal Newtonian telescope with Carbon tube. Each UNC Newtonian is individually manufactured for you in Germany. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese Telescopes are specially made to order.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 10\" f\/4 UNC Newtonian is a versatile and relatively compact telescope for portable and stationary use. The high speed of f\/4 makes the Newtonian the ideal telescope for astrophotography. We recommend an EQ6 or CGEM mount, which comfortably holds a Newtonian of this size with good stability when used for astrophotography.\u003c\/p\u003e\n\u003cp\u003eCheckout some examples of photos taken with this Telescope on \u003ca rel=\"noopener\" href=\"https:\/\/app.astrobin.com\/equipment\/explorer\/telescope\/554\/ts-optics-250mm10-unc-f4-newtonian-carbon-tube\" target=\"_blank\"\u003eAstrobin here\u003c\/a\u003e \u0026gt;\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe advantages of the TS UNC Newtonian telescope:\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality carbon tube made in Germany with maximum stability - customized manufacturing to suit your needs.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptimized focus position as desired and therefore also best possible illumination\u003cbr\u003ePrimary mirror cell and secondary mirror cell has been further improved by Teleskop-Service in Germany\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEasy collimation of primary and secondary mirror - by hand, without tools\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe edge of the secondary mirror is blackened\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTS Rack and Pinion focuser with M54 x 0.75 intermediate thread, also suitable for heavy cameras\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe secondary is attached to the secondary mirror mount with the correct offset before its shipped to you.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e94% reflectivity on primary mirror and secondary mirror for a brighter image\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiffraction limited primary mirror - each individual telescope is tested on an optical bench before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery UNC Newtonian is darkened inside:\u003c\/em\u003e\u003cbr\u003eThe tube inner side of the UNC Newtonian telescopes is darkened which prevents reflections and provides better contrast. The TS \"Black\" anti-reflective paint or a velour film is used. The result is a matte black tube interior. Velour film and the TS \"Black\" have a similar effect and darken better than the commonly used chalkboard paint.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Carbon Tube - finest precision work:\u003c\/em\u003e\u003cbr\u003eThe carbon tube is extra solid and completely reinforced, and not only around the focuser which makes the tube much stiffer. The openings for the secondary spider vanes are precisely fitted with turned mating parts, to ensure that the secondary spider vanes are correct and the telescope produces perfect spikes right from the start.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFocus position optimized for astrophotography:\u003c\/em\u003e\u003cbr\u003eThe focus point is 135mm above the tube. This allows you to use different focusers and still have a comfortable working distance. With the standard focuser you even get 80mm working distance, which even allows the use of focal reducers or a binoviewer with moderate glass path compensation. For standard correctors like the Baader MPCC or the TS-Optics MAXFIELD corrector we recommend the 20mm spacer, which goes between the focuser. This gives you 60mm backfocus. Note: For visual observations you need a 2\" extension tube.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe 2\" TS UNCN2-G2 focuser:\u003c\/em\u003e\u003cbr\u003eA core component of the TS UNC-Newtons is the modern TS UNCN2-G2 focuser. The focuser builds up only 58mm from the tube edge and still carries heavy cameras and accessories without tilting. This type of focuser is also far superior to conventional Crayford focusers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocuser Features:\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh stiffness with extremely short length\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecise 1:10 dual-speed gear - for perfectly focused Astrophotographs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe adjustment is decoupled from the ball bearing - a clear advantage over Crayford focusers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCan be adapted with motorized focusers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe ball bearings are adjustable, so the focuser tension can be adjusted perfectly - but its delivered with the focuser already optimally adjusted.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccessories can be screwed on - the 2\" receptacle can be unscrewed, providing you with an M54 x 0.75 female thread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eMore information about the focuser UNCN2-G2:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eParabolic primary mirror:\u003c\/em\u003e\u003cbr\u003eNewtonian primary mirrors made of fused silica are free of strain and provide an image that is usually even much better than diffraction limited. The surface is coated with an enhanced 94% reflection layer and a protective quartz layer. The primary mirror has a central marking as an adjustment aid.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePrimary mirror fan for faster cool-down:\u003c\/em\u003e\u003cbr\u003eA fan accelerates the cooling down to ambient temperature. As long as a mirror has not cooled down properly, it generates warm air currents that degrade the image - regardless of which mirror substrate is used. This effect only stops once the mirror has cooled down.\u003c\/p\u003e\n\u003cp\u003eEvery TS Carbon Newtonian is tested on an optical bench before shipping:\u003cbr\u003eAfter assembly, each UNC Newtonian is subjected to an optical test in the workshop before shipping. This ensures that the telescope will adapt perfectly with your accessories and also delivers the optical performance you expect.\u003c\/p\u003e\n\u003cp\u003eBefore shipping, the primary mirror with the cell is removed from the tube and packed separately. This is done to ensure a safer shipment and avoid unnecessary transport damages.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eChoose your focus positions and secondary mirror diameter:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cspan style=\"color: rgb(37, 163, 34);\"\u003e\u003cstrong\u003eFocus position No. 1\u003c\/strong\u003e\u003c\/span\u003e: Set 60mm above the 2\" receptacle has proven to be very versatile. It is the standard position. Nevertheless, we can also offer you individual focus positions and other secondary mirror sizes at no extra charge:\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: rgb(37, 163, 34);\"\u003e\u003cstrong\u003eFocus position No. 2\u003c\/strong\u003e\u003c\/span\u003e: Set 30mm above the 2\" receptacle - optimal for visual observation or for correctors with focal length extension, such as the PARACORR from TeleVue. The secondary mirror will be slightly smaller.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: rgb(37, 163, 34);\"\u003e\u003cstrong\u003eFocus position No. 3\u003c\/strong\u003e\u003c\/span\u003e: Set 90mm above the 2\" receptacle - this allows you to use the TS2KORRR 0.73x Reducer\/Corrector and improve the telescope speed. The combination is then designed for cameras up to APS-C format. The secondary mirror will be slightly larger.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eImportant:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eAs these Telescopes are made to your specifications, please allow a little extra delivery time as the workshop prepares and tests your new Telescope before shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAssembly and collimation instructions:\u003c\/em\u003e\u003cbr\u003eThe telescope is delivered disassembled into several units for safety. The assembly and adjustments are not complicated, you can download the instructions in advance. The PDF \u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0596\/1924\/6275\/files\/Instructions_for_Assembly_of_TS_UNC_Newtonian_Telescopes.pdf?v=1735107453\" target=\"_blank\"\u003ecan be found here\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpec:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTelescope type: Newtonian telescope\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiameter primary mirror: 250mm - 10\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFocal length: 1000mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/4\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrimary mirror: Parabolic primary mirror - mirror substrate quartz glass\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuality of optics: Significantly better than diffraction limited\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eReflectivity of primary mirror and secondary mirror: 94 %, enhanced\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiameter secondary mirror: 88mm minor axis - other secondary mirror sizes on request\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube: Carbon tube - solid material with reinforcing aluminum ring - wall thickness 2.5mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube inner diameter: 298mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupport surface on the bottom of the tube rings: Flat support surface with an M6 thread\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupport surface on the top of the tube rings: Flat support surface with a 1\/4” internal thread (tripod socket)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFocuser: 2\" UNCN2-G2 rack and pinion focuser with M54x0.75 adapter thread for screw adaptions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 12kg with tube rings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLength: approx. 1000mm (depending on focus position)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions: The specified dimensions and weights are to be regarded as approximate values, they may vary dependent on your specific chosen Telescope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhats included:\u003cbr\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eTS UNC Carbon Newtonian telescope with 2\" UNCN2-G2 focuser\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAluminum tube rings with two flat bearing surfaces per ring\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDust caps for the telescope opening and the focuser\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e20mm extension between base and focuser\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVixen style finder shoe\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e8x50 finder with finder bracket\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eReducer from 2\" to 1.25\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFan for cooling down the primary mirror\u003cbr\u003eInstructions for assembling and collimating the telescope\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"font-style: italic;\"\u003e\u003cspan style=\"color: rgb(82, 182, 74);\"\u003e\u003cem\u003eFREQUENTLY BOUGHT WITH THIS ITEM\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-style: italic; color: rgb(82, 182, 74);\"\u003e\u003cspan style=\"color: rgb(82, 182, 74);\"\u003e\u003cem\u003e0.73x Reducer \u0026amp; Corrector - \u003ca rel=\"noopener\" href=\"https:\/\/www.horizonastronomy.ie\/collections\/ts-optics-astronomy\/products\/ts-optics-x0-73-reducer-for-newtonians\" style=\"color: rgb(82, 182, 74);\" target=\"_blank\"\u003eClick here \u0026gt;\u003c\/a\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TS Optics","offers":[{"title":"Focuser Position No.1","offer_id":54671489761615,"sku":"UNC25410(FOC1)","price":2478.61,"currency_code":"EUR","in_stock":true},{"title":"Focuser Position No.2","offer_id":54671474458959,"sku":"UNC25410(FOC2)","price":2478.61,"currency_code":"EUR","in_stock":true},{"title":"Focuser Position No.3","offer_id":54671474491727,"sku":"UNC25410(FOC3)","price":2478.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/1924\/6275\/files\/TSUNC10inchNewtonianTelescope_2.jpg?v=1742147153","url":"https:\/\/www.horizonastronomy.ie\/en-pt\/products\/ts-optics-unc-f-4-newtonian-10","provider":"Horizon Astronomy • Telescope Center","version":"1.0","type":"link"}