{"product_id":"bahtinov-focus-mask-for-telescopes-acrylic-focusin","title":"Bahtinov Focus Mask For Telescopes Acrylic Focusing Mask Fits Tube OD 120mm To 160mm A Must Have Accessory For Dobsonian Refractor Mak Cassegrain Or Any Telescope Great For Quick Accurate Focus Every Time","description":"\u003cdiv\u003eAcrylic Focus Mask for 120-160mm Telescope Tubes\u003cbr\u003e\n✔️ Includes 1 mask and 3 mounting posts for a secure 120-160mm fit \u003cp\u003eA quick, lightweight focusing aid designed for most telescope tubes. It works great on Dobsonian, refractor, Mak Cass, and other scopes, helping you nail sharp focus quickly and reliably.\u003c\/p\u003e \u003cp\u003e✅ Material: acrylic, approx. 2mm thick\u003cbr\u003e✅ Weight: approx. 46g (1.6oz)\u003cbr\u003e✅ Outer diameter support: 120-160mm \/ 4.7-6.3in\u003cbr\u003e✅ Three mounting posts with silicone covers for slip-free centering\u003cbr\u003e✅ Lightweight design minimizes balance impact\u003c\/p\u003e \u003cp\u003e💡 What is a Bahtinov focus mask used for in telescope focusing? This handy tool helps you dial in precise focus quickly across a range of telescope types.\n- handy for quick, precise focus adjustments in the field\n- works with 120-160mm tube diameters for many popular scopes\n- three-post mounting for centered, slip-free alignment\n- lightweight acrylic design that minimizes balance impact\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48939045617899,"sku":"VXB0B6D1P28L","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71PNVi4fR6L_aa18b9c7-2afe-45d1-8b1e-ca208062d2db.jpg?v=1782397175","url":"https:\/\/vxb.com\/products\/bahtinov-focus-mask-for-telescopes-acrylic-focusin","provider":"VXB Bearings","version":"1.0","type":"link"}