{"product_id":"tri-bahtinov-focus-mask-for-celestron-11-inch-rasa","title":"Tri-Bahtinov Focus Mask For Celestron 11 Inch RASA Telescopes, Quick Setup Astrophotography Focusing Aid, Precision Bahtinov Grid Mask, Easy Install End-Cap Style, Improve Focusing Accuracy During Star Shots","description":"\u003cdiv\u003eBahtinov Focus Mask for 11in RASA Telescopes, Focusing\u003cbr\u003e\n✔️ End-cap style mask for 11in RASA, single mask included, fast setup \u003cp\u003eThe Tri-Bahtinov Focus Mask is a precision Bahtinov grid you place over the end of your 11-inch RASA telescope to aid astrophotography focusing. Made in the USA by Farpoint Astro, this end-cap style mask installs quickly and stays secure during star shots.\u003c\/p\u003e \u003cp\u003e✅ Fits the 11in RASA end-cap, ensuring a secure fit\u003cbr\u003e✅ Precise Bahtinov grid aids quick focus checks on star targets\u003cbr\u003e✅ Quick, tool-free installation; made in the USA by Farpoint Astro\u003cbr\u003e✅ Compact mask for easy transport and storage\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a Bahtinov focus mask and how does it help achieve precise star focus during astrophotography with a telescope? It's a handy tool for dialing in sharp focus on star shots.\n- Bahtinov grids overlay a diffraction pattern to reveal focus errors\n- Tri-Bahtinov designs provide quick, precise focus across multiple targets\n- End-cap style masks install easily on 11in RASA tubes\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48939384111339,"sku":"VXB08M22G8S2","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/716IS5UO_hL_0948fb34-e8f7-40d4-b852-03c965869794.jpg?v=1782401521","url":"https:\/\/vxb.com\/products\/tri-bahtinov-focus-mask-for-celestron-11-inch-rasa","provider":"VXB Bearings","version":"1.0","type":"link"}