{"product_id":"erf-2-e2-80-b3-filter-s-series-for-quark-chromosphere","title":"ERF 2″ Filter S-series for Quark Chromosphere","description":"Player One S series filter using high quality optical glass substrate and multi-layer composite coating technology, which has excellent optical performance in astrophotography.\r\n\r\n\u003cstrong data-spm-anchor-id=\"2013.1.0.i1.44c7454dwNdx9O\"\u003e2 inch ERF filter ( Energy rejection filter for Quark Chromosphere）\u003c\/strong\u003e\r\n\r\nThis filter is an assistant filter, design for Quark Chromosphere (Ha verstion) ,\u003cstrong\u003e intend to reject energy and extend life time of your Quark\u003c\/strong\u003e.\r\n\r\n2″ ERF filter must working on\u003cstrong\u003e 6″ or smaller refractors.\u003c\/strong\u003e\r\n\r\n\u003cem\u003e\u003cstrong\u003e(DO NOT use it on eyepiece for observing)\u003c\/strong\u003e\u003c\/em\u003e","brand":"Astro Hutech","offers":[{"title":"Default Title","offer_id":49343896387890,"sku":"ERF2","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0883\/6995\/5122\/files\/ERF2.jpg?v=1727243995","url":"https:\/\/a7ead1-f1.myshopify.com\/products\/erf-2-e2-80-b3-filter-s-series-for-quark-chromosphere","provider":"Astro Hutech","version":"1.0","type":"link"}