{"title":"Accessoires visuels David Astro","description":"\u003cp\u003eLes accessoires visuels David Astro couvrent tout ce qui se trouve entre le porte-oculaire et l'oculaire. Les renvois coudés diélectriques à serrage rotatif, avec 99 % de réflectivité, existent en 1.25\" et 2\", et le serrage rotatif maintient l'oculaire centré sans marquer le coulant. Un renvoi coudé 90° 1.25\" et un renvoi à pentaprisme complètent le choix.\u003c\/p\u003e\u003cp\u003eLa tête binoculaire Premium Linear Erect offre une vision à deux yeux avec une image redressée, bien adaptée à la Lune et aux planètes.\u003c\/p\u003e","products":[{"product_id":"dav-diag-1-25","title":"David Astro 90° Diagonal - 1.25\"","description":"\u003c!-- more --\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e1.25\" Mirror Diagonal\u003c\/strong\u003e\u003cspan\u003e is a must-have accessory for astronomers, providing a comfortable viewing angle and improved image quality during telescope observations. Designed to reflect light at a 90-degree angle, this diagonal makes it easier to observe objects high in the sky without straining your neck.\u003c\/span\u003e\u003c\/p\u003e","brand":"David Astro","offers":[{"title":"Default Title","offer_id":49171614597405,"sku":"DAV-DIAG-1.25","price":59.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/DAV-DIAG-1.25.jpg?v=1726775167"},{"product_id":"david-astro-premium-linear-erect-binoviewer","title":"David Astro Premium Linear Erect Binoviewer","description":"\u003cul\u003e\n\u003cli\u003eNo backfocus requirement, it can be used with any telescopes, newtonians included, without the need for barlow or extender lenses.\u003c\/li\u003e\n\u003cli\u003eSelf-Centering Twist-lock collars\u003c\/li\u003e\n\u003cli\u003eSliding linear housing to adjust IPD\u003c\/li\u003e\n\u003cli\u003eBuilt-in image erecting system\u003c\/li\u003e\n\u003cli\u003eIncluded case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cdiv class=\"warning\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" alt=\"Disclaimer\" width=\"25px\"\u003e\n\u003cp\u003e If you plan to use a barlow with a linear binoviewer, it is crucial to choose a telecentric barlow, such as the Explore Scientific Focal Extenders or TeleVue PowerMates. Regular barlows are not suitable, as they produce divergent light paths, resulting in mismatched images between the eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"David Astro","offers":[{"title":"Default Title","offer_id":49304655593757,"sku":"DAV-BINO","price":549.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/David-Astro-Premium-Linear-Binoviewers.jpg?v=1729966240"},{"product_id":"david-astro-penta-prism-diagonal-1-25","title":"David Astro Penta Prism Diagonal - 1.25\"","description":"\u003cp\u003eThe David Astro Penta Prism 90-Degree Diagonal is a non inverting non reversing diagonal. It’s particularly suited for use with the David Astro Premium Linear BinoViewer, where its unique optical design delivers an accurate image orientation, eliminating the need for image inversion or mental adjustments common with traditional star diagonals.\u003c\/p\u003e\n\u003cp\u003eAt the heart of this diagonal is a pentagonal-shaped BK-7 glass prism, multi-coated on its transmitting surfaces and dielectric-coated on the reflective surfaces, which maximizes light transmission to the eyepiece. Unlike standard star diagonals that produce a mirror-reversed image, the Pentaprism Diagonal preserves the natural left-to-right orientation, making it invaluable for star navigation and terrestrial applications.\u003c\/p\u003e\n\u003cp\u003eThis 1.25” diagonal features a non-marring compression ring collar and a tapered barrel for secure attachment to any telescope focuser, and it’s threaded for 1.25” filters. With a generous clear aperture of 29mm, the diagonal avoids vignetting even with long focal length and wide-angle eyepieces, preserving field brightness and edge-to-edge clarity.\u003c\/p\u003e\n\u003cp\u003eDesigned with an optical path length (backfocus requirement) of 120mm, our Pentaprism Diagonal ensures compatibility with most telescope setups. When paired with the David Astro Premium Linear BinoViewer, it provides a correctly oriented view, ideal for terrestrial observation where orientation accuracy is essential. However, it may not yield the same results with other binoviewers that lack an integrated image-erecting lens.\u003c\/p\u003e\n\u003cp\u003eEnhance your observing experience with the David Astro Pentaprism Diagonal, the ideal choice for astronomers and terrestrial viewers seeking clarity and orientation without sacrificing image quality.\u003c\/p\u003e","brand":"David Astro","offers":[{"title":"Default Title","offer_id":49365734981917,"sku":"DAV-PENTA-1.25","price":199.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/DAV-PENTA-125.jpg?v=1731532016"},{"product_id":"david-astro-99-dielectric-twist-lock-diagonal-2","title":"David Astro 99% Dielectric Twist-Lock Diagonal - 2\"","description":"\u003c!-- more --\u003e\u003cp\u003eThe 2\" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This premium diagonal features 99% dielectric coatings, ensuring exceptional light transmission and durability. With dielectric coatings, you gain a brighter, sharper image with enhanced contrast, as the high reflectivity minimizes light loss across the optical path – perfect for observing fine planetary details, star clusters, and deep-sky objects.\u003c\/p\u003e\n\u003cp\u003eEquipped with an innovative twist-lock mechanism, this diagonal provides a secure, centered hold for your eyepieces and accessories. Simply twist to lock your eyepiece in place – no more fumbling with thumbscrews or misalignments. This mechanism not only protects your equipment but also ensures optimal alignment for the best possible image quality, making it a convenient and reliable addition to your telescope setup.\u003c\/p\u003e\n\u003cp\u003eThe 2” format is compatible with standard 2” focusers, and its wide clear aperture is designed to support even large, wide-field eyepieces without vignetting. This twist-lock diagonal is built to last, with an anodized aluminum body that’s as durable as it is lightweight.\u003c\/p\u003e","brand":"David Astro","offers":[{"title":"Default Title","offer_id":49365752348957,"sku":"DAV-DIG-TL-2","price":219.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/DAV-DIG-TL-2.jpg?v=1731533415"},{"product_id":"david-astro-99-dielectric-twist-lock-diagonal-1-25","title":"David Astro 99% Dielectric Twist-Lock Diagonal - 1.25\"","description":"\u003c!-- more --\u003e\n\u003cp\u003eThe 1.25\" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This premium diagonal features 99% dielectric coatings, ensuring exceptional light transmission and durability. With dielectric coatings, you gain a brighter, sharper image with enhanced contrast, as the high reflectivity minimizes light loss across the optical path – perfect for observing fine planetary details, star clusters, and deep-sky objects.\u003c\/p\u003e\n\u003cp\u003eEquipped with an innovative twist-lock mechanism, this diagonal provides a secure, centered hold for your eyepieces and accessories. Simply twist to lock your eyepiece in place – no more fumbling with thumbscrews or misalignments. This mechanism not only protects your equipment but also ensures optimal alignment for the best possible image quality, making it a convenient and reliable addition to your telescope setup.\u003c\/p\u003e\n\u003cp\u003eThe 1.25” format is compatible with standard 1.25” focusers. This twist-lock diagonal is built to last, with an anodized aluminum body that’s as durable as it is lightweight.\u003c\/p\u003e","brand":"David Astro","offers":[{"title":"Default Title","offer_id":49365758574877,"sku":"DAV-DIG-TL-1.25","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/DAV-DIG-TL-125.jpg?v=1731533606"}],"url":"https:\/\/davidastro.com\/fr-us\/collections\/david-astro-visual-accessories.oembed","provider":"David Astro","version":"1.0","type":"link"}