{"product_id":"1-25-inch-20mm-erecting-imaging-eyepiece-newtonian-reflector-telescope","title":"1.25\" 20mm Erecting Imaging Eyepiece – Newtonian Reflector Telescope","description":"\n\u003ch2\u003e1.25\" 20mm Erecting Imaging Eyepiece for Newtonian Reflector Telescopes\u003c\/h2\u003e\n\u003cp\u003eUpgrade your stargazing sessions with this \u003cstrong\u003e1.25-inch (20mm) Erecting Imaging Eyepiece\u003c\/strong\u003e, designed specifically for Newtonian reflector telescopes. Unlike standard reflector eyepieces that produce an inverted image, this erecting eyepiece corrects the orientation so you see a true, right-side-up view — perfect for terrestrial observations and making celestial navigation more intuitive.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrect Upright Imaging:\u003c\/strong\u003e Delivers a fully erect, positive image — ideal for both astronomical and land-based viewing with your Newtonian reflector.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1.25-Inch (31.75mm) Barrel:\u003c\/strong\u003e Standard 1.25\" fitting ensures broad compatibility with a wide range of reflector telescopes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20mm Focal Length:\u003c\/strong\u003e Provides a comfortable, wide field of view for scanning the night sky or observing landscapes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built with a sturdy plastic body in classic black — lightweight yet robust for regular use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Use:\u003c\/strong\u003e Simply insert into your telescope's focuser like any standard eyepiece — no tools required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n    \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eSpecification\u003c\/th\u003e\n    \u003cth style=\"padding:8px; border:1px solid #ddd; text-align:left;\"\u003eDetail\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBarrel Size\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1.25 inch (31.75mm)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFocal Length\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eImage Orientation\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eErect (Right-Side-Up)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCompatible Telescope Type\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNewtonian Reflector\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eColor\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBlack\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaterial\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePlastic\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCountry of Origin\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 1.25\" 20mm Erecting Imaging Eyepiece\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Due to lighting and display differences, the actual product color may vary slightly from images. Measurement tolerance is ±1–3cm.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on telescope optics and astronomy best practices, visit the NASA Telescope Guide.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is an erecting imaging eyepiece and why do I need one for my Newtonian reflector telescope?\u003c\/h4\u003e\n\u003cp\u003eA: A standard Newtonian reflector telescope produces an inverted (upside-down) image due to its mirror design. An erecting imaging eyepiece uses additional internal lens elements to flip the image back to its correct, right-side-up orientation. This makes it much easier to observe terrestrial subjects and helps with intuitive celestial navigation when star-hopping across the night sky.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will this 1.25\" erecting imaging eyepiece fit my telescope?\u003c\/h4\u003e\n\u003cp\u003eA: This eyepiece is designed for telescopes with a standard 1.25-inch (31.75mm) focuser barrel — the most common size found on consumer and entry-level Newtonian reflector telescopes. If your telescope accepts 1.25\" eyepieces, this erecting imaging eyepiece should fit. Always verify your telescope's focuser diameter before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What magnification will I get with this 20mm erecting eyepiece?\u003c\/h4\u003e\n\u003cp\u003eA: Magnification is calculated by dividing your telescope's focal length by the eyepiece focal length. For example, if your telescope has a 1000mm focal length, using this 20mm eyepiece will give you 50× magnification (1000 ÷ 20 = 50). The 20mm focal length provides a wider, more comfortable field of view, making it great for scanning large areas of the sky.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this eyepiece for daytime\/terrestrial viewing?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Because this is an \u003cem\u003eerecting\u003c\/em\u003e imaging eyepiece — meaning it produces a corrected, right-side-up image — it is well-suited for daytime terrestrial viewing such as bird watching, landscape observation, or any ground-level subject, in addition to nighttime astronomy.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is an erecting imaging eyepiece and why do I need one for my Newtonian reflector telescope?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A standard Newtonian reflector telescope produces an inverted (upside-down) image due to its mirror design. 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Because this is an erecting imaging eyepiece — meaning it produces a corrected, right-side-up image — it is well-suited for daytime terrestrial viewing such as bird watching, landscape observation, or any ground-level subject, in addition to nighttime astronomy.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"1.25\\\" 20mm Erecting Imaging Eyepiece – Newtonian Reflector Telescope\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/1-25-inch-20mm-erecting-imaging-eyepiece-newtonian-reflector-telescope\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"Default Title","offer_id":48751063367872,"sku":"\u003cnone\u003e","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S1cd466e1e5904c058496367da256e1e1F.webp?v=1786238874","url":"https:\/\/vueselect.com\/products\/1-25-inch-20mm-erecting-imaging-eyepiece-newtonian-reflector-telescope","provider":"Vue","version":"1.0","type":"link"}