{"product_id":"innovations-foresight-astigmatism-corrector-for-onag-xm-and-sc-onag-a-corr","title":"Innovations Foresight Astigmatism corrector for ONAG XM and SC (ONAG-A-CORR)","description":"\u003ch2\u003eInnovations Foresight Astigmatism corrector for ONAG XM and SC\u003c\/h2\u003e\n\u003cp\u003eThis 1.25″ astigmatism corrector drops in the ONAG XM and SC guider port focuser draw tube and it is secured with two #4-40 set screws.\u003c\/p\u003e\n\u003cp\u003eWhen in place the corrector minimizes the ONAG dichroic beam splitter induced astigmatism providing diffraction limited guide stars.\u003c\/p\u003e\n\u003cp\u003eThe corrector is useful for imaging in NIR, while guiding or imaging in visible from the ONAG imager port (IP). It is also recommended for fast scopes with f\/#\u0026lt;6 and\/or large central obstructions (\u0026gt;40%). This corrector reduces the ONAG guider back focus distance by 3mm.\u003c\/p\u003e\n\u003cp\u003eWhen used with the continuous real time auto focus software \u003ca href=\"https:\/\/www.innovationsforesight.com\/education\/real-time-autofocus\/\" target=\"_blank\"\u003eFocusLock\u003c\/a\u003e (FL) the corrector can be rotated to dial back some controlled level of astigmatism.\u003c\/p\u003e\n\u003cp\u003eConsult the \u003ca href=\"https:\/\/www.innovationsforesight.com\/support\/download\/\" target=\"_blank\"\u003eONAG user manua\u003c\/a\u003el (version 6 and higher) for installation and further information.\u003c\/p\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eAstigmatism corrector for ONAG XM and SC\u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eInnovations Foresight products are covered by a limited, non-transferable, one year warranty, unless otherwise noted. The warranty starts at the day of shipping.\u003cbr\u003e Returns under warranty requires a per-approval authorization from Innovations Foresight.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Innovations Foresight","offers":[{"title":"Default Title","offer_id":44063182815461,"sku":"IF-ONAG-A-CORR","price":282.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/innovations-foresight-astigmatism-corrector-for-onag-xm-and-sc-onag-a-corr-astronomy-plus.webp?v=1690490305","url":"https:\/\/istronomyplus.com\/products\/innovations-foresight-astigmatism-corrector-for-onag-xm-and-sc-onag-a-corr","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}