{"product_id":"celestron-1-25-erect-image-45-diagonal","title":"Celestron 45º Erect Image Diagonal","description":"\u003ch2\u003eCelestron 45º Erect Image Diagonal – The Perfect Upgrade for Daytime Viewing\u003c\/h2\u003e\n\u003cp\u003eDid you know your telescope isn’t just for stargazing? Many \u003cstrong\u003erefractor and catadioptric telescopes\u003c\/strong\u003e, including popular \u003cstrong\u003eSchmidt-Cassegrain models\u003c\/strong\u003e, also work exceptionally well for \u003cstrong\u003eterrestrial observation\u003c\/strong\u003e. To make the most of your telescope during the day, the ideal upgrade is the \u003cstrong\u003eCelestron 45º Erect Image Diagonal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis clever accessory corrects image orientation, so what you see through the eyepiece matches the real world—\u003cstrong\u003eupright and correctly oriented left to right\u003c\/strong\u003e. Whether you’re observing wildlife, scenic landscapes, or distant ships, this diagonal makes daytime use of your telescope \u003cstrong\u003eintuitive, natural, and enjoyable\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy You Need an Erect Image Diagonal for Terrestrial Use\u003c\/h3\u003e\n\u003cp\u003eMost standard star diagonals used for astronomy produce \u003cstrong\u003einverted or mirror-reversed images\u003c\/strong\u003e. While this doesn’t matter for celestial viewing (there’s no \"right way up\" in space), it can be disorienting when observing land-based objects. Try following a bird in flight or tracking a moving boat with a reversed or upside-down view—it's far from ideal.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eCelestron 45º Erect Image Diagonal\u003c\/strong\u003e solves this by using an \u003cstrong\u003eAmici prism\u003c\/strong\u003e, which delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRight-side-up\u003c\/strong\u003e images\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLeft-to-right correct\u003c\/strong\u003e orientation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA comfortable \u003cstrong\u003e45º viewing angle\u003c\/strong\u003e—perfect for horizontal or near-horizontal viewing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes it an essential addition for anyone who wants to get more use out of their telescope during the day.\u003c\/p\u003e\n\u003ch3\u003eIdeal for Refractors and Schmidt-Cassegrain Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis diagonal is designed for telescopes that accept \u003cstrong\u003e1.25” accessories\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefractor telescopes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCatadioptric telescopes\u003c\/strong\u003e (like Schmidt-Cassegrains and Maksutovs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSimply remove your existing star diagonal and replace it with the \u003cstrong\u003eCelestron 45º erect image diagonal\u003c\/strong\u003e. It slides into the focuser or visual back with ease and is compatible with all standard 1.25” eyepieces.\u003c\/p\u003e\n\u003ch3\u003eImportant Note for Newtonian Users\u003c\/h3\u003e\n\u003cp\u003ePlease note that this erect-image diagonal is \u003cstrong\u003enot suitable for Newtonian reflectors\u003c\/strong\u003e. Due to the internal optical design of Newtonians, adding an erect-image diagonal will not provide a fully correct orientation. While Newtonians can still be used for daytime observing, users will need to become comfortable with images that appear \u003cstrong\u003erotationally skewed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e45º \u003cstrong\u003eAmici prism diagonal\u003c\/strong\u003e for comfortable terrestrial viewing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduces images that are \u003cstrong\u003eupright and correctly oriented\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with \u003cstrong\u003e1.25” eyepieces and focusers\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for \u003cstrong\u003erefractor and catadioptric telescopes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMakes tracking moving objects or landscapes \u003cstrong\u003eintuitive and accurate\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLightweight, easy to install, and durable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTransform Your Telescope into a Terrestrial Spotting Scope\u003c\/h3\u003e\n\u003cp\u003eWhether you're \u003cstrong\u003ebirdwatching, ship spotting, or enjoying panoramic views\u003c\/strong\u003e, the \u003cstrong\u003eCelestron 45º Erect Image Diagonal\u003c\/strong\u003e makes your astronomical telescope versatile for daytime adventures. It’s a simple, affordable way to \u003cstrong\u003eget more out of your gear\u003c\/strong\u003e—day or night.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder now\u003c\/strong\u003e and enjoy crystal-clear, properly oriented daytime views with your telescope.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55897345556854,"sku":"050234941129","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2235\/3014\/files\/Celestron-45-degree-Erect-Image-Diagonal-Product-Photo-1.webp?v=1757493835","url":"https:\/\/welshastronomy.co.uk\/products\/celestron-1-25-erect-image-45-diagonal","provider":"The Welsh Astronomy Centre","version":"1.0","type":"link"}