{"product_id":"starizona-rasa-8-filter-holder","title":"Starizona RASA 8 Filter Holder - M42 Threads (RASA8-FH)","description":"\u003ch1 class=\"product-title\"\u003eRASA 8 Filter Holder - M42 Threads\u003c\/h1\u003e\n\u003cdiv class=\"shopify-section product--section\"\u003e\n\u003csection data-product-wrapper=\"\" class=\"product--container layout--two-col\"\u003e\n\u003carticle class=\"prod-description\"\u003e\n\u003cdiv class=\"product-description rte\" data-product-description=\"\"\u003e\n\u003ch4\u003eFor RASA 8 users, the Starizona RASA 8 Filter Holder lets you run standard 2\" filters with cameras that can’t use a Filter Slider.\u003c\/h4\u003e\n\u003cp\u003eStarizona’s Filter Slider for the Celestron RASA 8\" telescope is a popular option.\u003c\/p\u003e\n\u003cp\u003eHowever, the very short backfocus means only certain ZWO cameras fit that setup.\u003c\/p\u003e\n\u003cp\u003eThis Filter Holder is designed for cameras that are not compatible with the Filter Slider.\u003c\/p\u003e\n\u003cp\u003eIt supports common models like the ZWO ASI2600 and ASI071.\u003c\/p\u003e\n\u003cp\u003eIt also works with other brands, including Altair, Atik, QHY, Mallincam, and more.\u003c\/p\u003e\n\u003cp\u003eThe holder uses a standard 2\" mounted filter.\u003c\/p\u003e\n\u003cp\u003eThis makes it a straightforward path to adding light pollution, narrowband, or other filter types.\u003c\/p\u003e\n\u003cp\u003eThe RASA 8 Filter Holder includes a 5mm M42 spacer.\u003c\/p\u003e\n\u003cp\u003eWith the spacer installed, it provides 17.5mm of backfocus.\u003c\/p\u003e\n\u003cp\u003eThat matches the most common camera backfocus requirement.\u003c\/p\u003e\n\u003cp\u003eOther spacers are optionally available for different camera setups.\u003c\/p\u003e\n\u003cp\u003eWithout any spacer, the maximum usable backfocus is 22.5mm.\u003c\/p\u003e\n\u003cp\u003eInstallation is simple and follows the optical layout of the telescope.\u003c\/p\u003e\n\u003cp\u003eRemove the optical window that comes installed in the RASA 8.\u003c\/p\u003e\n\u003cp\u003eThen install a standard 2\" mounted filter in the Filter Holder.\u003c\/p\u003e\n\u003cp\u003eThe holder replaces the standard camera adapter flange from the RASA.\u003c\/p\u003e\n\u003cp\u003eIt is secured using the stock lock ring.\u003c\/p\u003e\n\u003cp\u003eSlots are included so you can still access the collimation screws on the RASA.\u003c\/p\u003e\n\u003cp\u003eFor best results, confirm your camera’s backfocus and spacer stack before imaging.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications (RASA 8)\u003c\/h3\u003e\n\u003cp\u003eNo specifications listed.\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's in the box\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eT-Spacer (5mm)\u003c\/li\u003e\n\u003cli\u003eStarizona RASA 8 Filter Holder (6.5mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* If you have the first version of the RASA 8 Filter Holder, your holder will be 5mm tall.\u003c\/p\u003e\n\u003cp\u003eIt came with a 1mm shim for the same total backfocus.\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/starizona-warranty\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eStarizona 1-Year Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Starizona","offers":[{"title":"Default Title","offer_id":44040575451365,"sku":"SZA-RASA8-FH","price":126.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/starizona-rasa-8-filter-holder-rasa8-fh-astronomy-plus-1.webp?v=1690490115","url":"https:\/\/istronomyplus.com\/products\/starizona-rasa-8-filter-holder","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}