{"product_id":"tele-vue-np101is-4-101mm-refractor-telescope","title":"Tele Vue NP101is 4\"\/101mm Refractor Telescope","description":"\u003cul\u003e \u003cli\u003eAPO Nagler-Petzval Refractor\u003c\/li\u003e \u003cli\u003e540mm, f\/5.4\u003c\/li\u003e \u003cli\u003e4\"\/101 Aperture\u003c\/li\u003e \u003cli\u003eDual-Speed 10:1 Focuser\u003c\/li\u003e \u003cli\u003eThreaded Imaging Insert\u003c\/li\u003e \u003cli\u003eFully Multicoated\u003c\/li\u003e \u003cli\u003eMade in USA\u003c\/li\u003e \u003cli\u003eRequires Eyepiece, Mount \u0026amp; Tripod\u003c\/li\u003e \u003c\/ul\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cp\u003e The \u003cb\u003eTele Vue-NP101is 4\"\/101mm Refractor Telescope\u003c\/b\u003e from \u003cb\u003eTele Vue\u003c\/b\u003e is a stellar leader in the field of high end imaging telescopes. Tele Vue's craftsmanship and optical excellence is legendary and this APO pushes the envelope of excellence. The Tele Vue-NP101is refractor offers a 540mm focal length with an f\/5.4 in a precision crafted instrument designed for CCD astro-photography. The Nagler-Petzval design uses widely spaced doublets to produce a flat focal plane over a relatively narrow field of view. The \u003ci\u003e\"is\"\u003c\/i\u003e designation denotes an instrument capable of accepting \u003ci\u003eI\u003c\/i\u003e maging \u003ci\u003eS\u003c\/i\u003e ystems by offering a specific mechanical architecture for photography. The Tele Vue-NP101is is as optically, mechanically, and functionally near perfection as possible for imaging up to 50mm diagonal chips without detracting from the excellence of its visual capabilities. \u003c\/p\u003e \u003cp\u003eThe APO Nagler-Petzval refractor telescope has been provisioned with a Focusmate dual-speed focuser possessing a larger draw tube with a 3\" front aperture and 2.4\" rear aperture. The rack and pinion focuser holds up to 12 lbs of weight while providing the extremely fine focusing control of a 10:1 dual speed pinion assembly. The draw tube allows quick transition from imaging to viewing. It has an imaging insert ring with four lock screws which is threaded to accept optical items, cameras and CCD attachments. The focuser itself is a planetary ball type reduction focuser with extremely sensitive focus adjustment better than 1\/10,000\". A sliding metal dew shield, screw-on metal lens cover and a hard-shell carrying case are part of the package. Dark sky watching and imaging doesn't get any more satisfying than this.\u003c\/p\u003e \u003cp\u003eThe apochromatic refractor is the telescope design which produces the greatest breathtaking contrast and resolution, and Tele Vue doesn't skimp on the engineering. It won't deliver the light gathering capacity per dollar of Newtonian reflectors nor the portability of aperture of a Schmidt-Cassegrain. What it does deliver are views to be envied by both, with the darkest of background sky and the sharpest, widest fields imaginable. Combined with Tele Vue eyepieces, the experience cannot be bested by anything one would consider portable.\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdl\u003e \u003cdd\u003eAPO Nagler-Petzval refractor with 2 groups of 4 elements\u003c\/dd\u003e \u003c\/dl\u003e \u003cdl\u003e \u003cdd\u003eHard-shell carrying case allows added protection with convenient and stylish transportation\u003c\/dd\u003e \u003c\/dl\u003e \u003cdl\u003e \u003cdd\u003eSliding metal dew shield and screw-on metal lens cover add protection and shielding to the telescope\u003c\/dd\u003e \u003c\/dl\u003e \u003cdl\u003e \u003cdd\u003eFully multicoated optics provide multiple layers on all air to glass surfaces for a brighter, higher-contrast image with less eyestrain\u003c\/dd\u003e \u003c\/dl\u003e \u003cdl\u003e \u003cdd\u003eDrawtube enlarged focuser with 3\" entrance aperture and 2.4\" exit aperture sports a Focusmate dual-speed 10:1 rack\/pinion focuser. Focuser body has a brass clamp ring with 2-lock knobs\u003c\/dd\u003e \u003c\/dl\u003e \u003cdl\u003e \u003cdd\u003eAccessory end-ring with tilt capability and 4-lock knobs, an imaging insert threaded for Imaging Systems and a 2\" accessory insert provide all the versatility needed for a comprehensive viewing or astro-photography configuration\u003c\/dd\u003e \u003c\/dl\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e\u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eOptical Design\u003c\/td\u003e \u003ctd\u003eApochromatic refractor\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOptical Lens Diameter\u003c\/td\u003e \u003ctd\u003e4\"\/101 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFocal Length\u003c\/td\u003e \u003ctd\u003e540 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFocal Ratio\u003c\/td\u003e \u003ctd\u003ef\/5.4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMaximum Useful Magnification\u003c\/td\u003e \u003ctd\u003e250\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMaximum Visual Field\u003c\/td\u003e \u003ctd\u003e 4.9° \u003cspan\u003e \u003ca href=\"#specNote1\"\u003e\u003c\/a\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cp\u003ewith 2-inch 55mm Plössl\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/span\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eResolving Power\u003c\/td\u003e \u003ctd\u003e1.1 arc-sec\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMount Type\u003c\/td\u003e \u003ctd\u003eRing mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEyepiece Barrel Diameter\u003c\/td\u003e \u003ctd\u003e2\"\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eFinderscope\u003c\/td\u003e \u003ctd\u003eNot included\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eTripod\u003c\/td\u003e \u003ctd\u003eNot included\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMotor\u003c\/td\u003e \u003ctd\u003eNone\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eGO-TO Capability\u003c\/td\u003e \u003ctd\u003eNone\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePC Compatible\u003c\/td\u003e \u003ctd\u003eNone\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePower Source\u003c\/td\u003e \u003ctd\u003eNone\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOptical Tube Dimensions\u003c\/td\u003e \u003ctd\u003eLength: 25.5\" \/ 64.8 cm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWeight\u003c\/td\u003e \u003ctd\u003eOTA: 10.7 lb \/ 4.9 kg\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003e \u003ca\u003ePackaging Info\u003c\/a\u003e \u003c\/th\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003ePackage Weight\u003c\/td\u003e \u003ctd\u003e25.7 lb\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBox Dimensions (LxWxH)\u003c\/td\u003e \u003ctd\u003e32.4 x 12.0 x 11.1\"\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003eIn the Box\u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003eTele Vue NP101is 4\"\/101mm Refractor Telescope\u003c\/div\u003e \u003c\/div\u003e \u003cul\u003e \u003cli\u003eHard-Shell Carry Case\u003c\/li\u003e \u003cli\u003eSliding Metal Dew Shield\u003c\/li\u003e \u003cli\u003eThreaded Imaging Insert\u003c\/li\u003e \u003cli\u003eScrew-On Metal Lens Cover\u003c\/li\u003e \u003cli\u003e2.4\" Focusmate Dual-Speed Focuser 10:1\u003c\/li\u003e \u003cli\u003e5-Year Warranty Against Manufacturer Defects\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003c\/div\u003e All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.","brand":"Tele Vue-10","offers":[{"title":"Default Title","offer_id":27475518736,"sku":"TENP101IS:TENP101IS:bhpv","price":705395.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/products\/Tele_Vue_NPI_4057_Tele_Vue_NP101is_4_101mm_Refractor_1307713586000_770265.jpg?v=1575980319","url":"https:\/\/www.tanotis.com\/products\/tele-vue-np101is-4-101mm-refractor-telescope","provider":"Tanotis","version":"1.0","type":"link"}