{"product_id":"orion-optics-uk-200mm-f4-5-mirror","title":"Orion Optics UK 200mm F\/4.5 Mirror","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e200mm aperture, f\/4.5\u003c\/li\u003e\n\u003cli\u003eStandard grade, 1\/4 PV wavefront accuracy\u003c\/li\u003e\n\u003cli\u003eHand-figured in the UK\u003c\/li\u003e\n\u003cli\u003eSupplied with a Zygo interferometer test report\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003e200mm f\/4.5 Standard Grade Primary Mirror\u003c\/h2\u003e\n\u003cp\u003eA 200mm f\/4.5 Newtonian primary mirror hand-figured by Orion Optics UK to Standard grade (1\/4 PV wavefront accuracy).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWavefront-Accuracy Grading\u003c\/h3\u003e\n\u003cp\u003eOrion Optics UK hand-figures every primary mirror in-house to a wavefront-accuracy grade (Standard 1\/4 PV, Professional 1\/6 PV, Research 1\/8 PV, or Ultra 1\/10 PV) -- the smaller the fraction, the more precisely the surface matches a perfect parabola, and the sharper and higher-contrast the resulting image. Supplied with a Zygo interferometer test report.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavefront accuracy\u003c\/td\u003e\n\u003ctd\u003e1\/4 PV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e200mm f\/4.5 Standard Primary Mirror\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/orion-optics-uk-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eOrion Optics UK 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion Optics UK","offers":[{"title":"Standard (1\/4 PV)","offer_id":52942616559901,"sku":"OOUK-200MM-F4-5-STANDARD-1","price":681.0,"currency_code":"CAD","in_stock":true},{"title":"Professional (1\/6 PV)","offer_id":52942616592669,"sku":"OOUK-200MM-F4-5-PROFESSIONAL-1","price":806.0,"currency_code":"CAD","in_stock":true},{"title":"Research (1\/8 PV)","offer_id":52942616625437,"sku":"OOUK-200MM-F4-5-RESEARCH-1","price":951.0,"currency_code":"CAD","in_stock":true},{"title":"Ultra (1\/10 PV)","offer_id":52942616658205,"sku":"OOUK-200MM-F4-5-ULTRA-1","price":1116.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Orion-Optics-UK-Logo_f8eaf6d7-520c-465b-a464-39dc60566805.jpg?v=1789608375","url":"https:\/\/davidastro.com\/fr\/products\/orion-optics-uk-200mm-f4-5-mirror","provider":"David Astro","version":"1.0","type":"link"}