{"product_id":"starfield-optics-ed102-f-7-apo-doublet-refractor-s80-07-00","title":"StarField Optics ED102 f\/7 APO Doublet Refractor - S102-07-00","description":"\u003cp\u003eThe StarField Optics ED102 f\/7 APO doublet telescope uses extra low dispersion FPL53 glass, along with a Lanthanum element, to produce color-free images with beautiful contrast and sharpness rivaling a much more expensive triplet system.  It also cools down more quickly than a triplet, which allows you to make the best use of your time under the stars. The doublet optics of the StarField ED102 are fully multi-coated and housed in a precision CNC machined, fully adjustable temperature compensated cell.  \u003c\/p\u003e\n\u003cp\u003eThe internally baffled optical tube assembly is matte powder coated white with a hard anodized finish that will retain its beauty for years to come.  At one end, the OTA sports a retractable dew shield, which shortens the tube assembly to about 26\".  The back end of the OTA includes a 2.5\" dual speed rack and pinion focuser that is fully rotatable (360-degrees) and sports a 2\" axial lock.  \u003c\/p\u003e\n\u003cp\u003eAccessories include a self-centering 2\" adapter, heavy-duty cradle rings with \u003cspan data-mce-fragment=\"1\"\u003eM6 threaded holes spaced 30 mm apart\u003c\/span\u003e and a Vixen-style dovetail.  \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis decked out 4\" ED doublet can serve beautifully as a visual telescope for day or night with the addition of a diagonal, finder and a few eyepieces.  In addition, the StarField ED102 can do some serious imaging, especially if you add the optional 0.8X reducer that will take the focal ratio down from f\/7 to f\/5.6.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 102 mm\u003c\/li\u003e\n\u003cli\u003eFocal length: 714 mm\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/7\u003c\/li\u003e\n\u003cli\u003eLens design: 2 element lens (ED doublet), air-spaced\u003c\/li\u003e\n\u003cli\u003eOptics:  FPL-53 Ohara Japan glass with a Lanthanum element\u003c\/li\u003e\n\u003cli\u003eTube material: Aluminum - CNC machined\u003c\/li\u003e\n\u003cli\u003eTube weight: 12 lb.\u003c\/li\u003e\n\u003cli\u003eTube length: 26\", retracted\u003c\/li\u003e\n\u003cli\u003eVisual Limiting Magnitude:  12.2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDawe's Limit:  1.45 arc sec\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFocuser: 2.5\" dual speed rack and pinion focuser, fully rotatable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"StarField Optics","offers":[{"title":"Default Title","offer_id":39694714962033,"sku":"SFO-S102-07-00","price":1010.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/Starfield_ED102_S102-70-00.jpg?v=1776459247","url":"https:\/\/khanscope.com\/en-fr\/products\/starfield-optics-ed102-f-7-apo-doublet-refractor-s80-07-00","provider":"Khan Scope Centre","version":"1.0","type":"link"}