{"title":"Hutech Energy Rejection Filters","description":null,"products":[{"product_id":"hutech-energy-rejection-filters","title":"Hutech Energy Rejection Filters","description":"\u003cul\u003e\r\n \t\u003cli\u003eThe external filter prevents the telescope inside from heating up.\u003c\/li\u003e\r\n \t\u003cli\u003eHigh-quality interference type of filter\u003c\/li\u003e\r\n \t\u003cli\u003e60nm bandpass (central wavelength : 656.28nm)\u003c\/li\u003e\r\n \t\u003cli\u003eOver 95% transmission at Ha emission line\u003c\/li\u003e\r\n \t\u003cli\u003eOD 4 between 200nm and 1100nm\u003c\/li\u003e\r\n \t\u003cli\u003eGlass thickness : 12.0mm\u003c\/li\u003e\r\n \t\u003cli\u003eThe filter assembly is comprised with a filter holder unit and a dew-shield adapter.\u003c\/li\u003e\r\n \t\u003cli\u003eAvailable at 190mm, 140mm and 120mm effective apertures at this moment.\u003c\/li\u003e\r\n \t\u003cli\u003eThe set comes with a customized dew-shield adapter. So perfectly fits your scope.\u003c\/li\u003e\r\n \t\u003cli\u003eThe dew-shield adapters will be sold separately as an optional items later. So each user can switch ERF to another telescope by changing only the dew-shield adapter.\u003c\/li\u003e\r\n \t\u003cli\u003eA couple of weeks lead time due to the custom-made process.\u003c\/li\u003e\r\n \t\u003cli\u003eAffordable price in its size and quality\u003c\/li\u003e\r\n \t\u003cli\u003eWe have the mechanical data on following telescopes as of August 23 2022.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003ca href=\"http:\/\/www.hutech.com\/file\/erf.pdf\"\u003e\u003cem\u003e\u003cstrong\u003eDocumentation for assembling\/disassembling the adapters\u003c\/strong\u003e\u003c\/em\u003e\u003c\/a\u003e\r\n\r\nBORG : 150ED\/125ED\/107FL\/100ED\/90FL\/76ED\r\n\r\nSky-watcher : EvoStar 150ED\/120ED\r\n\r\nTakahashi FS128\/TOA130\r\n\r\nIStar 204\r\n\r\nC8\r\n\u003cul\u003e\r\n \t\u003cli\u003eSpecify us the accurately measured circumference data for the dew-shield if your scope is not listed above.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n \r\n\r\n ","brand":"Astro Hutech","offers":[{"title":"190mm","offer_id":49343911428402,"sku":"ERF190","price":1099.0,"currency_code":"USD","in_stock":true},{"title":"140mm","offer_id":49343911461170,"sku":"ERF140","price":799.0,"currency_code":"USD","in_stock":true},{"title":"120mm","offer_id":49343911493938,"sku":"ERF120","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0883\/6995\/5122\/files\/ERF140-2.jpg?v=1727244271"}],"url":"https:\/\/a7ead1-f1.myshopify.com\/collections\/hutech-energy-rejection-filters.oembed","provider":"Astro Hutech","version":"1.0","type":"link"}