{"title":"Camera Lenses \u0026 Adapters","description":null,"products":[{"product_id":"zwo-1-3-2-1mm-150-lens","title":"ZWO Objectif all-sky 2.1mm 150° - Pour capteurs 1\/3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocale de 2.1mm\u003c\/li\u003e\n\u003cli\u003eChamp de 150°\u003c\/li\u003e\n\u003cli\u003eOptimisé pour les capteurs au format 1\/3\"\u003c\/li\u003e\n\u003cli\u003eSert d'objectif pour caméra all-sky\u003c\/li\u003e\n\u003cli\u003eFiletage standard monture CS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eCaractéristiques\u003c\/li\u003e\n\u003cli\u003eDans la boîte\u003c\/li\u003e\n\u003cli\u003eTéléchargements\u003c\/li\u003e\n\u003cli\u003eGarantie\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eZWO Objectif all-sky 2.1mm 150° - Pour capteurs 1\/3\"\u003c\/h2\u003e\n\u003cp\u003eL'objectif ZWO 2.1mm à monture CS transforme votre caméra planétaire en outil de surveillance all-sky dédié, qui capte un vaste champ de 150° en une seule image. Cet objectif est spécialement conçu pour les caméras ZWO équipées d'un capteur 1\/3\", comme l'ASI120 ou l'ASI224MC, et couvre le capteur d'un bord à l'autre pour la détection de météores et la surveillance météo.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUne vue de 150° d'un horizon à l'autre\u003c\/h3\u003e\n\u003cp\u003eAvec sa courte focale de 2.1mm, cet objectif offre un champ extrêmement large de 150°. Vous captez ainsi la majeure partie du ciel nocturne d'un seul coup, ce qui en fait le choix idéal pour enregistrer les essaims de météores, suivre les passages de satellites ou surveiller la couverture nuageuse toute la nuit, sans monture motorisée. Le ciel devient une toile vivante plutôt qu'une cible figée.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptimisé pour les caméras de guidage \u0026amp; planétaires ZWO 1\/3\"\u003c\/h3\u003e\n\u003cp\u003eCet objectif est conçu pour correspondre parfaitement au cercle image des capteurs au format 1\/3\". Tout le capteur est ainsi éclairé sans vignetage important ni champ perdu, un problème fréquent lorsque l'objectif et le capteur sont mal assortis. Il se monte directement sur des modèles populaires comme les ZWO ASI120MM-S, ASI120MC-S et ASI224MC, et les transforme en puissants instruments scientifiques et de surveillance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStandard de monture CS et adaptateurs nécessaires\u003c\/h3\u003e\n\u003cp\u003eL'objectif utilise un filetage standard à monture CS pour une connexion directe aux boîtiers de caméra compatibles. Notez qu'aucun adaptateur de monture C\/CS n'est fourni avec cet objectif. Pour obtenir une mise au point correcte, vous aurez besoin de l'adaptateur de monture CS fourni à l'origine avec votre caméra ZWO, ou d'en acheter un séparément. Un objectif à monture CS ne peut pas faire la mise au point sur une caméra à filetage monture C, car une bague d'adaptation ne peut qu'ajouter de la distance, pas en retirer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMontage direct :\u003c\/strong\u003e se visse directement sur le filetage monture CS de nombreuses caméras ZWO.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePas pour les caméras à monture C :\u003c\/strong\u003e un objectif à monture CS ne peut pas faire la mise au point sur un boîtier à filetage monture C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMécanisme de mise au point :\u003c\/strong\u003e la mise au point et le diaphragme manuels vous permettent de régler et de bloquer l'objectif pour un fonctionnement constant nuit après nuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eQuels événements puis-je capter avec l'objectif ZWO 2.1mm 150° ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLe champ ultra-large de 150° est idéal pour capter les phénomènes célestes de grande ampleur. Vous pouvez enregistrer des essaims de météores entiers comme les Perséides ou les Géminides, suivre la trajectoire de bolides brillants, surveiller des phénomènes transitoires comme les aurores, ou simplement réaliser des time-lapses du lever et du coucher de la Voie lactée.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eQuelles caméras ZWO fonctionnent le mieux avec cet objectif 2.1mm ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCet objectif est conçu pour les caméras à \u003cstrong\u003ecapteur 1\/3\"\u003c\/strong\u003e. Les associations les plus courantes et recommandées sont la série ZWO ASI120 (monochrome comme couleur) et l'ASI224MC. Sur un capteur plus grand, vous obtiendrez un fort vignetage et un cercle image incomplet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eComment faire la mise au point de l'objectif all-sky ZWO 2.1mm ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLa mise au point se fait manuellement en tournant la bague de l'objectif. En astronomie, il est préférable de faire la mise au point de nuit sur une étoile brillante. Une fois la mise au point nette sur tout le champ, la vis de blocage de l'objectif permet de fixer sa position pour un fonctionnement prolongé sans surveillance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAi-je besoin d'une monture motorisée pour utiliser l'objectif ZWO 2.1mm ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNon, une monture motorisée n'est pas nécessaire. Cet objectif est même conçu pour un usage statique sur un trépied fixe. Le champ de 150° est si large que les étoiles mettent des heures à traverser l'image, ce qui est parfait pour réaliser des time-lapses all-sky et surveiller le ciel depuis une position fixe.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAi-je besoin de filtres avec l'objectif ZWO 2.1mm pour observer les météores ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePour la plupart des applications all-sky comme les essaims de météores (p. ex. les Orionides), aucun filtre n'est nécessaire : il s'agit de capter le plus de lumière possible. Si vous êtes dans une zone touchée par la pollution lumineuse, un simple filtre IR-cut peut améliorer légèrement le contraste, surtout avec une caméra couleur comme l'ASI224MC, mais ce n'est pas indispensable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eQuel adaptateur me faut-il pour raccorder l'objectif ZWO 2.1mm à ma caméra ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eC'est un objectif à monture CS. Il se visse directement sur une caméra dotée d'un filetage femelle monture CS. Il ne peut pas faire la mise au point sur une caméra à filetage monture C, car une bague d'adaptation C vers CS ajoute seulement 5mm d'espacement et ne peut pas réduire le tirage mécanique. La plupart des caméras ZWO auxquelles cet objectif est destiné, comme l'ASI120, sont livrées avec les adaptateurs nécessaires, mais l'objectif lui-même n'en inclut pas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRéférence (SKU)\u003c\/td\u003e\n\u003ctd\u003eZWO-LENS-2.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocale\u003c\/td\u003e\n\u003ctd\u003e2.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChamp\u003c\/td\u003e\n\u003ctd\u003e150°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTaille de capteur prévue\u003c\/td\u003e\n\u003ctd\u003eFormat 1\/3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType de monture\u003c\/td\u003e\n\u003ctd\u003eMonture CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGarantie\u003c\/td\u003e\n\u003ctd\u003e2 ans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eObjectif CS 150º pour capteurs ASI 1\/3\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.zwoastro.com\/software\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTélécharger le logiciel\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/fr\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eGarantie limitée ZWO de 2 ans\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":44967384219933,"sku":"ZWO-LENS-2.1","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO-1-3-inch-2-1mm-150-degree-lens-1__84146.1596910045.1280.1280.jpg?v=1684341533"},{"product_id":"zwo-2-5mm-170-lens","title":"ZWO Objectif all-sky 2.5mm 170° - Pour capteurs 1\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003eFocale de 2.5mm\u003c\/li\u003e\n  \u003cli\u003eChamp all-sky de 170°\u003c\/li\u003e\n  \u003cli\u003eConçu pour les capteurs au format 1\/2\"\u003c\/li\u003e\n  \u003cli\u003eFiletage monture CS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n  \u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n  \u003cli\u003eFAQ\u003c\/li\u003e\n  \u003cli\u003eCaractéristiques\u003c\/li\u003e\n  \u003cli\u003eDans la boîte\u003c\/li\u003e\n  \u003cli\u003eTéléchargements\u003c\/li\u003e\n  \u003cli\u003eGarantie\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n  \u003cli class=\"active\"\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section-center\"\u003e\n          \u003ch2\u003eZWO Objectif all-sky 2.5mm 170° - Pour capteurs 1\/2\"\u003c\/h2\u003e\n          \u003cp\u003eL'objectif all-sky CS ZWO 2.5mm 170° transforme votre caméra astronomique en sentinelle d'horizon à horizon, capable de capter un immense champ de 170 degrés en une seule image. Cet objectif de 2.5mm de focale est conçu spécifiquement pour les caméras à capteur 1\/2\", comme les séries ZWO ASI178 et ASI185, afin de surveiller les pluies de météores, suivre les phénomènes atmosphériques ou assurer la surveillance du ciel.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eUne perspective all-sky de 170°\u003c\/h3\u003e\n          \u003cp\u003eLa fonction principale de cet objectif de 2.5mm est d'offrir un immense champ de 170°. Cette couverture étendue permet de capter toute la voûte céleste visible d'un seul coup, ce qui en fait l'outil idéal pour les timelapses du passage de la Voie lactée, l'enregistrement de pluies de météores comme les Perséides ou les Géminides, ou la surveillance d'événements transitoires comme les bolides et les flashs de satellites.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eOptimisé pour les capteurs au format 1\/2\"\u003c\/h3\u003e\n          \u003cp\u003eCet objectif est conçu pour correspondre au cercle image des capteurs au format 1\/2\". Associé à des caméras comme les ZWO ASI178MM, ASI178MC ou ASI185MC, il produit une image all-sky circulaire complète avec un vignetage minimal sur les bords du capteur. Les données recueillies d'horizon à horizon sont ainsi exploitables et homogènes.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n              \u003cstrong\u003eCompatibilité directe :\u003c\/strong\u003e se visse directement sur la monture CS des caméras ZWO compatibles.\n            \u003c\/li\u003e\n            \u003cli\u003e\n              \u003cstrong\u003eAdapté au capteur :\u003c\/strong\u003e la focale de 2.5mm est calculée pour projeter tout le champ de 170° sur le format de capteur plus petit, sans champ perdu ni bordures noires excessives.\n            \u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eRaccordement en monture CS et précautions\u003c\/h3\u003e\n          \u003cp\u003eL'objectif possède un filetage standard en monture CS pour une fixation directe sur de nombreuses caméras planétaires et de guidage. Il est toutefois essentiel de noter qu'un objectif en monture CS n'atteindra pas la mise au point sur une caméra à filetage en monture C. Le tirage CS est plus court que le tirage de la monture C, et une bague d'adaptation ne peut qu'ajouter de l'espacement, pas en retirer. Si votre caméra ZWO nécessite un adaptateur en monture CS, il n'est pas inclus avec l'objectif.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eQuelles caméras sont compatibles avec l'objectif all-sky ZWO 2.5mm ?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eCet objectif de 2.5mm est conçu spécifiquement pour les caméras à \u003cstrong\u003ecapteur au format 1\/2\"\u003c\/strong\u003e avec monture CS. Il convient parfaitement à des modèles comme les ZWO ASI178MM, ASI178MC et ASI185MC. Il fonctionne aussi avec la série ASI120.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eAi-je besoin d'adaptateurs pour utiliser l'objectif ZWO 2.5mm ?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eCela dépend de la monture de votre caméra. L'objectif possède un \u003cstrong\u003efiletage en monture CS\u003c\/strong\u003e. Si votre caméra (comme l'ASI178) possède une monture CS native, il se fixe directement. Si votre caméra utilise une monture C, cet objectif n'atteindra pas la mise au point, car une bague d'adaptation C vers CS ne fait qu'ajouter de l'espacement. Aucun adaptateur n'est inclus.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eL'objectif ZWO 2.5mm convient-il pour capter la pluie de météores des Géminides ?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eOui, tout à fait. Son champ de 170° le rend parfait pour les pluies de météores. Vous pouvez pointer la caméra droit vers le haut et capter les météores qui apparaissent n'importe où dans le ciel sans avoir à viser, ce qui en fait une configuration idéale pour la détection automatique de météores avec un logiciel dédié.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eCet objectif de 2.5mm fonctionne-t-il avec un capteur plus grand, comme une caméra APS-C ?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eNon, cet objectif n'est pas recommandé pour les capteurs de plus de 1\/2\". Le cercle image qu'il projette est trop petit pour les grands capteurs et entraînera un fort vignetage, avec seulement un petit cercle éclairé au centre d'une grande image noire.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003ePuis-je utiliser des filtres avec l'objectif all-sky ZWO 170° ?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eCet objectif n'a pas de filetage de filtre standard sur l'élément avant ou arrière. Il est conçu pour l'imagerie grand champ sans filtre du ciel nocturne. Placer un filtre dans le chemin optique nécessiterait une solution sur mesure.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eComment faire la mise au point de l'objectif ZWO 2.5mm ?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eL'objectif possède une bague de mise au point manuelle. Vous devez la régler à la main pour obtenir des étoiles nettes. Il est préférable de le faire la nuit, en visualisant le flux en direct de la caméra sur l'écran d'un ordinateur portable et en ajustant la mise au point jusqu'à ce que les étoiles apparaissent comme des points lumineux fins.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003ctable class=\"DAV-specifications\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSKU\u003c\/td\u003e\n          \u003ctd\u003eZWO-LENS-2.5\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFocale\u003c\/td\u003e\n          \u003ctd\u003e2.5mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eChamp\u003c\/td\u003e\n          \u003ctd\u003e170°\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMonture\u003c\/td\u003e\n          \u003ctd\u003eMonture CS\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFormat de capteur recommandé\u003c\/td\u003e\n          \u003ctd\u003e1\/2\"\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGarantie\u003c\/td\u003e\n          \u003ctd\u003e2 ans\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cul class=\"DAV-grid\"\u003e\n      \u003cli class=\"DAV-grid-item\"\u003e\n        \u003cdiv\u003e\n          \u003cp class=\"DAV-item-title\"\u003eObjectif CS 170º 2.5mm\u003c\/p\u003e\n          \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cul class=\"DAV-grid\"\u003e\n      \u003cli class=\"DAV-grid-item\"\u003e\n        \u003ca href=\"https:\/\/www.zwoastro.com\/software\/\" target=\"_blank\"\u003e\n          \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\n            \u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\n          \u003c\/svg\u003e\n          \u003cdiv\u003e\n            \u003cp class=\"DAV-item-title\"\u003eTélécharger le logiciel\u003c\/p\u003e\n          \u003c\/div\u003e\n        \u003c\/a\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/fr\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eGarantie limitée ZWO de 2 ans\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":44967385956637,"sku":"ZWO-LENS-2-5","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO-2-5mm-170-degree-lens-1__46794.1596910046.1280.1280.jpg?v=1684341752"},{"product_id":"zwo-cs-lens-2-8mm-12mm-f1-4","title":"ZWO Objectif CS 2.8mm-12mm F1.4","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocale zoom de 2.8mm à 12mm\u003c\/li\u003e\n\u003cli\u003eOuverture lumineuse f\/1.4\u003c\/li\u003e\n\u003cli\u003eLarge champ de ~100°\u003c\/li\u003e\n\u003cli\u003eConçu pour les capteurs au format 1\/3\"\u003c\/li\u003e\n\u003cli\u003eFiletage standard à monture CS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eCaractéristiques\u003c\/li\u003e\n\u003cli\u003eDans la boîte\u003c\/li\u003e\n\u003cli\u003eGarantie\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eZWO Objectif CS 2.8mm - 12mm f\/1.4\u003c\/h2\u003e\n\u003cp\u003eL'objectif CS ZWO 2.8mm - 12mm f\/1.4 transforme votre caméra planétaire à petit capteur en véritable caméra all-sky. Sa focale variable de 2.8mm à 12mm offre un champ allant jusqu'à environ 100°, tandis que son ouverture lumineuse de f\/1.4 recueille assez de lumière pour capturer des phénomènes brefs comme les météores. Cet objectif est conçu spécialement pour les caméras à capteur 1\/3\", comme la série ZWO ASI120.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUn zoom de 2.8mm à 12mm pour cadrer le ciel\u003c\/h3\u003e\n\u003cp\u003eL'atout de cet objectif est sa plage de zoom polyvalente de 2.8mm à 12mm. À 2.8mm, vous capturez une immense portion du ciel, idéale pour surveiller les pluies de météores ou photographier toute la bande de la Voie lactée. En zoomant vers 12mm, vous pouvez cadrer de grandes constellations ou des régions précises sans changer de matériel, et maîtriser la composition directement sur l'objectif.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eL'avantage de f\/1.4 pour les phénomènes faibles et rapides\u003c\/h3\u003e\n\u003cp\u003eUn rapport focal de f\/1.4 est exceptionnellement lumineux et maximise la collecte de lumière en poses courtes. C'est essentiel pour capturer les traînées fugaces des météores, qui ne durent qu'une fraction de seconde. La grande ouverture permet d'utiliser des cadences d'images plus élevées et un gain plus faible sur votre caméra, pour des vidéos plus propres et moins bruitées des phénomènes atmosphériques ou des aurores.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMonture CS adaptée aux capteurs 1\/3\"\u003c\/h3\u003e\n\u003cp\u003eCet objectif utilise la monture CS standard, adaptée à la petite taille des capteurs au format 1\/3\" des caméras de guidage et planétaires. Le capteur est ainsi entièrement éclairé, sans vignetage, et la résolution correspond aux capacités de la caméra. Notez que pour raccorder cet objectif à une caméra ZWO standard à filetage T2, vous aurez besoin d'un adaptateur T2-CS vendu séparément.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibilité directe :\u003c\/strong\u003e s'associe idéalement aux caméras comme les ZWO ASI120MC\/MM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdaptateur requis :\u003c\/strong\u003e un adaptateur T2-CS ou M42-CS est nécessaire pour le raccordement à la plupart des caméras ZWO.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimite d'utilisation :\u003c\/strong\u003e le petit cercle image n'est pas prévu pour les caméras ciel profond à plus grand capteur, qui présenteraient un fort vignetage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eQuelles caméras conviennent le mieux à l'objectif CS ZWO 2.8-12mm ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCet objectif est conçu pour les caméras à \u003cstrong\u003ecapteur au format 1\/3\"\u003c\/strong\u003e. L'association classique est avec les caméras de la série ZWO ASI120. Avec une caméra à plus grand capteur, vous obtiendrez un petit cercle image au centre de l'image et un fort vignetage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAi-je besoin d'un adaptateur pour fixer cet objectif ZWO sur ma caméra ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOui. La plupart des caméras ZWO ont un filetage femelle T2 (M42x0.75) en face avant. Pour fixer cet objectif à monture CS, vous aurez besoin d'un \u003cstrong\u003eadaptateur T2-CS\u003c\/strong\u003e, vendu séparément. Cet adaptateur fournit le bon filetage et le bon espacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eComment utiliser l'objectif ZWO 2.8-12mm pour capturer l'essaim des Perséides ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePour les Perséides, réglez l'objectif sur sa focale la plus courte (\u003cstrong\u003e2.8mm\u003c\/strong\u003e) afin de couvrir le plus de ciel possible. Pointez votre caméra vers une zone sombre du ciel à environ 45° du radiant, dans Persée. L'\u003cstrong\u003eouverture lumineuse de f\/1.4\u003c\/strong\u003e vous permettra de capturer même les météores faibles en poses vidéo courtes dans un logiciel comme SharpCap ou FireCapture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eL'objectif ZWO 2.8-12mm convient-il à l'imagerie des planètes ou des galaxies ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNon, cet objectif ne convient pas à l'imagerie planétaire ni à l'imagerie du ciel profond. Sa focale extrêmement courte (\u003cstrong\u003e2.8mm-12mm\u003c\/strong\u003e) est conçue pour des vues du ciel en ultra grand angle. Pour les planètes, il faut la longue focale d'un télescope, et pour la plupart des galaxies, un instrument de focale bien plus longue est nécessaire pour résoudre le moindre détail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eQue signifie l'effet « fisheye » pour cet objectif ZWO ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eÀ sa focale la plus courte de 2.8mm, l'objectif présente une distorsion en barillet importante, souvent appelée effet « fisheye ». Les lignes droites (comme les arêtes des bâtiments) apparaissent courbées et les constellations proches du bord de l'image semblent étirées. C'est une caractéristique optique normale des objectifs très grand angle, nécessaire pour obtenir un champ de ~100°.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003ePuis-je utiliser des filtres avec l'objectif CS ZWO 2.8-12mm ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCet objectif n'a pas de filetage de filtre avant standard comme un objectif de reflex. Il est conçu pour l'imagerie grand champ du ciel nocturne sans filtre, par exemple pour les pluies de météores ou pour capturer la Voie lactée en couleurs naturelles avec une caméra couleur.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRéférence (SKU)\u003c\/td\u003e\n\u003ctd\u003eZWO-LENS-2.8-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocale\u003c\/td\u003e\n\u003ctd\u003e2.8mm - 12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuverture\u003c\/td\u003e\n\u003ctd\u003ef\/1.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMonture\u003c\/td\u003e\n\u003ctd\u003eMonture CS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat de capteur recommandé\u003c\/td\u003e\n\u003ctd\u003e1\/3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChamp (approx.)\u003c\/td\u003e\n\u003ctd\u003e~100°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eObjectif CS 2.8mm - 12mm f\/1.4\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/fr\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eGarantie limitée ZWO de 2 ans\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":44967433240861,"sku":"ZWO-LENS-2.8-12","price":53.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO-CS-Lens-2-8mm-12mm-F1-4-1__29815.1596910053.1280.1280.jpg?v=1684341838"},{"product_id":"askar-fma180-pro-180mm-f-4-5-apo-full-frame-lens","title":"Askar FMA180 Pro 180mm f\/4.5 APO Full Frame Lens","description":"\u003c!-- more --\u003e\n\u003cdiv\u003e\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\n\u003cspan\u003ePour offrir aux clients plus d'options, Askar a lancé le nouveau FMA180 pro. Le FMA180 pro est similaire au FMA180 en termes de conception optique. L'objectif présente une conception APO sextuplée à espacement d'air et comprend deux morceaux de verre ED, offrant une excellente correction de l'aberration chromatique. En plus des observations visuelles, le FMA180 pro est spécialement optimisé pour l'astrophotographie. Par rapport au FMA180, le FMA180 pro ajoute une base de recherche et un rotateur à 360°. De plus, le porte-oculaire est conçu comme une mise au point interne qui favorise sa stabilité et garantit ses performances en tant qu'astrographe délicat, de haute qualité et compact.\u003c\/span\u003e\n\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":44967778910493,"sku":"ASK-FMA180","price":615.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-FMA180-Pro.jpg?v=1720552327"},{"product_id":"askar-fma135-135mm-f-4-5-apo-lens","title":"Objectif Askar FMA135 135mm f\/4.5 APO","description":"\u003cspan data-mce-fragment=\"1\"\u003eLe tout nouveau début d'année 2021 voit l'avènement de notre astrographe FMA135 qui a hérité de la qualité constante, de la compacité et de la polyvalence de la famille FMA tout en possédant une spécialité incomparable. Comme son nom l'indique, le FMA135 est né avec un miroir primaire et un aplatisseur. Le miroir principal présente une structure triple APO d'un diamètre de 35 mm et d'une distance focale de 135 mm, dont un verre ED.\u003c\/span\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":46790462996765,"sku":"ASK-FMA135","price":461.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-FMA135.jpg?v=1696520355"},{"product_id":"svbony-sv555-54mm-f-4-5-petzval-apo-astrograph-lens","title":"SVBONY SV555 54mm f\/4.5 Petzval APO Astrograph Lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e54mm Aperture \/ 243mm Focal Length (f\/4.5)\u003c\/li\u003e\n\u003cli\u003e5-Element Petzval APO Optical Design\u003c\/li\u003e\n\u003cli\u003e44mm Full-Frame Image Circle\u003c\/li\u003e\n\u003cli\u003eVariable f\/4.5 to f\/22 Aperture Ring\u003c\/li\u003e\n\u003cli\u003eIncludes EAF Mounting Kit and 360° Rotator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSvbony SV555 54mm F4.5 Petzval APO Astrograph Lens\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV555 combines a 5-element Petzval optical system with the functionality of a professional telephoto lens, delivering a flat 44mm image circle for full-frame sensors. Its 54mm aperture and 243mm focal length produce a fast f\/4.5 focal ratio, while a unique variable aperture control allows you to stop down to f\/22 for enhanced control over star shapes and depth of field. This astrograph arrives ready for automation, including a mounting kit for popular electronic focusers right out of the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e5-Element Petzval Optics: A 44mm Flat-Field Image Circle\u003c\/h3\u003e\n\u003cp\u003eThe SV555's core is a 5-element, 3-group Petzval objective that acts as its own field flattener, ensuring sharp, point-like stars across a full-frame 44mm image circle. This apochromatic (APO) design virtually eliminates chromatic aberration, rendering vivid, high-contrast images without color fringing. At a 243mm focal length, you can capture vast swaths of the Milky Way or frame large targets like the Andromeda Galaxy (M31) and the North American Nebula (NGC 7000) in a single shot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ef\/4.5 to f\/22 Aperture Control: Unprecedented Imaging Flexibility\u003c\/h3\u003e\n\u003cp\u003eUnlike fixed-aperture astrographs, the SV555 features a manual aperture ring, adjustable from a wide-open f\/4.5 to a narrow f\/22. Shooting at the native f\/4.5 maximizes light gathering for faint deep-sky objects. Stopping down slightly can tighten star performance at the extreme edges of the field or increase contrast for lunar imaging, giving you a level of optical control typically reserved for camera lenses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Imaging Train: 360° Rotator and Included EAF Mount\u003c\/h3\u003e\n\u003cp\u003eThe SV555 is engineered for a seamless imaging experience. It includes a dedicated mounting kit for popular EAF systems, a lockable 360° camera angle adjuster for precise framing, and a helical focuser for fine adjustments. A built-in 2\" filter holder sits within the optical train, allowing easy integration of light pollution or narrowband filters without altering your back focus. The 184mm Vixen-style dovetail plate provides a secure connection to your mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSvbony SV555 vs. William Optics RedCat 51: Aperture and Control\u003c\/h3\u003e\n\u003cp\u003eThe primary competitor in this category is the William Optics RedCat 51, a highly regarded Petzval astrograph. While both deliver a flat, full-frame field, the SV555 presents key differences.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture and Speed:\u003c\/strong\u003e The SV555 offers a slightly larger 54mm aperture and a faster f\/4.5 focal ratio compared to the RedCat's 51mm and f\/4.9. This translates to more light-gathering capability and shorter exposure times for the same target.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture Control:\u003c\/strong\u003e The SV555's defining feature is its variable f\/4.5-f\/22 aperture, offering creative control over star sharpness and depth of field. The RedCat 51 has a fixed f\/4.9 aperture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Svbony includes an EAF mounting kit in the box, a component that is typically an additional purchase for other astrographs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Svbony SV555's Petzval design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e5-element Petzval design\u003c\/strong\u003e incorporates corrective optics directly into the main lens assembly. This means the Svbony SV555 produces a flat, corrected image field across its entire 44mm image circle without requiring a separate, external field flattener, simplifying your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the variable aperture (f\/4.5-f\/22) on the SV555 benefit astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe variable aperture gives you enhanced optical control. While the native \u003cstrong\u003ef\/4.5\u003c\/strong\u003e setting is best for capturing faint deep-sky objects, stopping down to f\/5.6 or f\/8 can slightly improve star shapes at the very edge of the frame or increase contrast on bright objects like the Moon. It also provides flexibility for terrestrial and daytime photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV555 with my full-frame camera like a Sony A7 or Canon R5?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Svbony SV555 is designed with a \u003cstrong\u003e44mm image circle\u003c\/strong\u003e, which fully illuminates the sensors of full-frame DSLR and mirrorless cameras. The back of the lens features a standard M48x0.75 male thread, allowing you to connect your camera with a brand-specific M48 T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to attach an electronic focuser (EAF) to the SV555?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNothing extra. The Svbony SV555 \u003cstrong\u003eincludes an EAF mounting kit\u003c\/strong\u003e in the box. This kit is designed to attach popular ZWO EAF models directly to the helical focuser, allowing you to achieve automated, precise focusing right away.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SV555 perform on large targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV555's \u003cstrong\u003e243mm focal length\u003c\/strong\u003e provides a very wide field of view, making it ideal for large celestial targets. Paired with a full-frame camera, you can easily fit the entirety of the Andromeda Galaxy (M31) or the expansive nebulosity of the North American Nebula (NGC 7000) and the Pelican Nebula (IC 5070) within a single frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of filters can I use with the Svbony SV555?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV555 has two filter mounting options. It features a \u003cstrong\u003ebuilt-in 2\" filter holder\u003c\/strong\u003e located inside the optical tube for standard 2-inch threaded filters. Additionally, the front of the lens has an \u003cstrong\u003eM72 thread\u003c\/strong\u003e for attaching larger front-mounted filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Design\u003c\/td\u003e\n\u003ctd\u003ePetzval (5 Elements in 3 Groups)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e54mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e243mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.5 - f\/22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003eΦ 44mm (Full Frame)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eHelical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Rotator\u003c\/td\u003e\n\u003ctd\u003eLockable 360º\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM72 (Front), Internal 2\" Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eVixen-style Dovetail Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Length\u003c\/td\u003e\n\u003ctd\u003e184mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e2450g (excluding accessories)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSV555 54mm f\/4.5 OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEAF Mount Kit\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHandle with Vixen Finder Saddle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDovetail Plate with M6 Holes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCamera Angle Adjuster\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Filter Holder (Assembled)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePlastic Lens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSoft Padded Case\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV555_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV555_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861222420765,"sku":"SV-F9395A","price":714.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV555-54mm-F4-5-Petzval-APO-Astrograph-Lens-for-CMOS-Cameras-1_a3ed004e-fffa-45ef-b871-d8d0bfddc691.jpg?v=1788884117"},{"product_id":"svbony-sv545-45mm-f-4-5-203mm-petzval-refractor-astrograph-lens","title":"SVBONY SV545 45mm f\/4.5 203mm Petzval Refractor Astrograph Lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e45mm Aperture\u003c\/li\u003e\n\u003cli\u003e203mm Focal Length (f\/4.5)\u003c\/li\u003e\n\u003cli\u003e5-Element Petzval Optical Design\u003c\/li\u003e\n\u003cli\u003eNative Flat-Field Astrograph\u003c\/li\u003e\n\u003cli\u003eHelical Focuser with 360º Rotator\u003c\/li\u003e\n\u003cli\u003eM48x0.75 Camera Connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePetzval Refractor Astrograph Lens | SVBONY SV545\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV545 is a dedicated wide-field astrograph, combining a fast f\/4.5 focal ratio with a 203mm focal length in a compact 45mm aperture optical system. Its 5-element Petzval design provides a natively flat field without the need for an external corrector, delivering sharp stars across the frame with any modern astronomy camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e45mm f\/4.5 Petzval Optics: 5 Elements for a Native Flat Field\u003c\/h3\u003e\n\u003cp\u003eThe SV545's optical core is a 5-element Petzval design arranged in 3 groups, engineered to eliminate field curvature right out of the box. This means you don't need a separate field flattener to achieve pinpoint stars, simplifying your imaging train and reducing costs. With a 45mm aperture and a fast f\/4.5 focal ratio, you can capture faint, extended objects like the North American Nebula (NGC 7000) or the Andromeda Galaxy (M31) with shorter exposure times.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Multi-Coated (FMC) Optics:\u003c\/strong\u003e All air-to-glass surfaces are coated to maximize light transmission and contrast, ensuring rich color and detail in your images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-Field Specialist:\u003c\/strong\u003e The 203mm focal length is purpose-built for capturing large swaths of the Milky Way and large-scale nebulae, not for high-magnification planetary viewing where its 45mm aperture would be a limitation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEAF-Ready Helical Focuser with 360° Rotation\u003c\/h3\u003e\n\u003cp\u003eAchieving critical focus is managed by a robust helical focuser designed for modern astrophotography workflows. The focuser is built to be compatible with popular Electronic Auto Focusers (EAFs), allowing you to automate your focusing routine for maximum sharpness. A lockable 360° rotator is integrated into the body, letting you frame your target perfectly without rotating your camera and upsetting your cable management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAll-Metal Build: 2750g with an M48x0.75 Connection\u003c\/h3\u003e\n\u003cp\u003eThe SV545 is constructed with an all-metal body and sealed optics, providing durability for fieldwork in changing environmental conditions. At an estimated weight of 2750g, it remains portable enough for lightweight star trackers and travel mounts. The rear of the astrograph terminates in a standard M48x0.75 male thread, enabling a secure, direct connection to DSLRs (with an M48 T-ring), dedicated astronomy cameras, and filter wheels.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDovetail Plate Mount:\u003c\/strong\u003e A standard dovetail plate allows for quick and secure attachment to a wide range of equatorial mounts and trackers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplified Imaging Train:\u003c\/strong\u003e The standard M48 connection and native flat-field design remove the need for extra adapters and correctors, creating a more rigid and reliable optical setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a field flattener or reducer for the SVBONY SV545?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SVBONY SV545 uses a \u003cstrong\u003ePetzval optical design\u003c\/strong\u003e, which produces a natively flat imaging field without any external correctors. You can connect your camera directly and expect sharp stars from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my camera to the SV545 astrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV545 features a standard \u003cstrong\u003eM48x0.75 male thread\u003c\/strong\u003e at the back. You can connect most dedicated astronomy cameras and filter wheels directly. For a DSLR or mirrorless camera, you will need a corresponding M48 T-ring for your camera brand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV545's focuser compatible with an EAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the product is designed with a helical focuser that is pre-equipped for mounting an Electronic Auto Focuser (EAF). This allows for precise, automated focusing during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount is needed for the 2750g SVBONY SV545?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith an estimated weight of 2750g, the SV545 is well-suited for portable star trackers (like a Sky-Watcher Star Adventurer) or small equatorial mounts. Its compact size and weight make it an excellent choice for a travel astrophotography setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would the SV545 frame large targets like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e203mm focal length\u003c\/strong\u003e of the SVBONY SV545 is ideal for framing large deep-sky objects. When paired with a common APS-C or Micro Four Thirds sensor, it will comfortably capture the entirety of the Orion Nebula (M42), including the surrounding nebulosity and the Running Man Nebula (NGC 1977), in a single shot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV545 suitable for planetary imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is not the ideal instrument for planets. The SV545 is a wide-field astrograph with a short 203mm focal length and small 45mm aperture. While you could see Jupiter's moons, it lacks the magnification and resolution needed to capture detail on planetary surfaces. A Schmidt-Cassegrain or Maksutov-Cassegrain would be a better choice for that purpose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Type\u003c\/td\u003e\n\u003ctd\u003ePetzval Design (5 Elements in 3 Groups)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e203mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eHelical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Rotator\u003c\/td\u003e\n\u003ctd\u003eLockable 360º\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eDovetail Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated Weight\u003c\/td\u003e\n\u003ctd\u003e2750g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV545_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV545_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861222519069,"sku":"SV-W9317B","price":560.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-Petzval-Refractor-Astrograph-Lens-SVBONY-SV545-1_52bd45d5-bd8a-43f0-a072-d31ac4045018.jpg?v=1788659396"},{"product_id":"svbony-sv535-f-2-8-5-element-7-group-apo-astro-camera-lens","title":"SVBONY SV535 f\/2.8 5-Element 7-Group APO Astro Camera Lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e105mm Focal Length\u003c\/li\u003e\n\u003cli\u003eFast f\/2.8 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eApochromatic (APO) 7-Element, 5-Group Optics\u003c\/li\u003e\n\u003cli\u003eHelical Focuser for Fine Adjustment\u003c\/li\u003e\n\u003cli\u003eIntegrated Vixen\/Arca-Swiss Dovetail Plate\u003c\/li\u003e\n\u003cli\u003eM42x0.75 Direct Camera Connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAPO Astro Camera Lense | SVBONY SV535\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV535 is a dedicated 105mm f\/2.8 astrograph lens engineered specifically for wide-field imaging. Its apochromatic optical system uses a 7-element, 5-group design to deliver sharp, color-corrected stars across a full-frame sensor. Weighing an estimated 1500g, the SV535 connects directly to your astro camera via a native M42x0.75 male thread for a rigid, secure imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFast f\/2.8 APO Optics: 105mm Wide-Field Imaging\u003c\/h3\u003e\n\u003cp\u003eThe SV535's optical design is built around its fast f\/2.8 focal ratio, allowing you to gather significant signal on faint nebulae and dust structures in a fraction of the time required by slower systems. The 105mm focal length provides a vast field of view, ideal for capturing large targets like the Andromeda Galaxy (M31) or the North America Nebula (NGC 7000) in a single frame. The apochromatic, 7-element design with full multi-coatings (FMC) ensures false color is suppressed, rendering stars as sharp, natural points of light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Mounting: Helical Focuser and M42x0.75 Connection\u003c\/h3\u003e\n\u003cp\u003eUnlike standard camera lenses adapted for astronomy, the SV535 incorporates features purpose-built for astrophotography. The body includes an integrated dovetail plate compatible with both Vixen-style and Arca-Swiss saddles, eliminating the need for separate mounting rings. Focusing is achieved with a precise helical focuser, offering smooth, fine control without the image shift common in lens-based focus mechanisms. The rear of the lens terminates in a standard M42x0.75 male thread for direct, secure attachment to dedicated astronomy cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM42x0.75 Direct Connection: Bypassing Standard T-Rings\u003c\/h3\u003e\n\u003cp\u003eA critical design feature of the SV535 is its limited back focus, which necessitates a direct M42x0.75 connection to your camera. This lens is intentionally incompatible with standard DSLR or mirrorless T-rings, as they would place the camera sensor outside the focal plane. This design choice favors dedicated astronomy cameras that can achieve focus at this shorter distance, resulting in a more compact and rigid imaging train with fewer potential points of flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSVBONY SV535 vs. Rokinon 135mm f\/2: A Trade-off in Focal Length and Integration\u003c\/h3\u003e\n\u003cp\u003eImagers considering the SV535 often compare it to the popular Rokinon 135mm f\/2 lens. The choice depends on your specific needs and existing equipment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRokinon 135mm f\/2 Advantage:\u003c\/strong\u003e The Rokinon is optically faster at f\/2 and provides a longer 135mm focal length, offering slightly more image scale on smaller targets. It is also a conventional camera lens, making it easily adaptable to any DSLR or mirrorless body with standard adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSVBONY SV535 Advantage:\u003c\/strong\u003e The SV535 is a dedicated astrograph. Its integrated dovetail, helical focuser, and native M42x0.75 thread are designed for astronomical use, providing a more stable and user-friendly platform on an equatorial mount without requiring additional rings or accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of targets is the SVBONY SV535 105mm lens best for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV535 excels at capturing extremely wide-field celestial views. It is ideal for large emission nebulae like the North America Nebula (NGC 7000), vast star-forming regions like the Rho Ophiuchi cloud complex, and sprawling galaxy groups such as the Virgo Cluster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the SVBONY SV535 incompatible with standard DSLR\/Mirrorless T-rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV535 is designed with a very short back focus distance. This means the camera sensor must be positioned much closer to the rear lens element than standard T-rings (which add significant length) allow. It is engineered for a \u003cstrong\u003edirect M42x0.75 connection\u003c\/strong\u003e to dedicated astronomy cameras that can accommodate this short distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would the SVBONY SV535 frame the Andromeda Galaxy (M31) with a full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith its 105mm focal length, the SVBONY SV535 on a full-frame sensor provides a field of view of approximately 19.4° x 13.0°. This is more than enough to comfortably frame the entire Andromeda Galaxy (M31), which spans about 3°, including its faint outer extensions and satellite galaxies M32 and M110.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV535 for imaging the Rho Ophiuchi cloud complex?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Rho Ophiuchi complex is a large, sprawling target that benefits greatly from the wide field of view provided by the SV535's 105mm focal length. The lens's fast f\/2.8 focal ratio is also a significant advantage for capturing the faint, colorful dust and nebulosity in this region.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to mount the SVBONY SV535 to my equatorial mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV535 has an integrated dovetail plate built into its body. This plate is compatible with both \u003cstrong\u003eVixen-style\u003c\/strong\u003e and \u003cstrong\u003eArca-Swiss\u003c\/strong\u003e saddle clamps, so it can be mounted directly to most modern equatorial mounts and trackers without needing any additional rings or hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of a helical focuser on the SVBONY SV535?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA helical focuser allows for very fine, precise focus adjustments by rotating a collar on the lens body. Unlike the focus rings on many camera lenses, it is designed to move the optics smoothly without rotation or wobble, ensuring that your target remains centered and that focus is critically sharp, which is essential for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Type\u003c\/td\u003e\n\u003ctd\u003e7-Elements in 5 Groups, Apochromatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e105mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/2.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eHelical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eIntegrated Dovetail Plate (Vixen \u0026amp; Arca-Swiss compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated Weight\u003c\/td\u003e\n\u003ctd\u003e1500g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV535_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861222715677,"sku":"SV-W9317A","price":336.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-APO-Astro-Camera-Lense-SVBONY-SV535-1_fcb16ce7-c759-4f02-9f76-73c15aeed6be.jpg?v=1788884078"},{"product_id":"player-one-2-5mm-cs-lens","title":"Player One 2.5mm CS lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2.5mm Focal Length\u003c\/li\u003e\n\u003cli\u003eCS-Mount Standard\u003c\/li\u003e\n\u003cli\u003eUltra-Wide Field of View\u003c\/li\u003e\n\u003cli\u003eIdeal for All-Sky Cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003e2.5mm CS lens\u003c\/h2\u003e\n      \u003cp\u003eThis 2.5mm CS lens is designed for a single purpose: capturing an extremely wide, horizon-to-horizon field of view. The short 2.5mm focal length is ideal for all-sky cameras, meteor detection systems, and atmospheric monitoring stations where situational awareness is more critical than high-resolution detail.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA 2.5mm Focal Length for All-Sky Imaging\u003c\/h3\u003e\n      \u003cp\u003eThe defining characteristic of this lens is its 2.5mm focal length, which produces a \"fisheye\" or near-fisheye perspective when paired with the small sensors typical of CS-mount cameras. This allows you to capture the entire visible sky in a single frame, making it a powerful tool for automated monitoring projects.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMeteor and Fireball Networks:\u003c\/strong\u003e Capture the full path of bright meteors against a fixed star-field background for triangulation and analysis.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eObservatory Cloud Monitoring:\u003c\/strong\u003e Get an instant, 24\/7 view of sky conditions to know when it's clear enough to open the dome.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAurora and Airglow Imaging:\u003c\/strong\u003e The ultra-wide perspective is perfect for framing large-scale, dynamic atmospheric phenomena like the aurora borealis.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTrade-Offs:\u003c\/strong\u003e Be aware that a 2.5mm focal length prioritizes field of view over image scale. There will be significant geometric distortion toward the edges, and individual objects will be very small. This lens is for capturing context, not close-up details.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary application for the 2.5mm CS lens?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary application is \u003cstrong\u003eall-sky imaging\u003c\/strong\u003e. Its 2.5mm focal length is designed to capture the widest possible field of view, making it ideal for meteor cameras, observatory weather stations, and monitoring large-scale atmospheric events like the aurora.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of camera mount does the 2.5mm CS lens use?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis lens uses the \u003cstrong\u003eCS-mount standard\u003c\/strong\u003e. This is a common threaded mount found on many security, industrial, and specialized small-format astronomy cameras, particularly those used for guiding or planetary imaging that have been repurposed for all-sky work.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see distortion with the 2.5mm CS lens?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, significant geometric distortion is an inherent characteristic of such a short focal length lens. Stars and objects near the edge of the field will appear stretched. This is a normal trade-off for achieving an ultra-wide, \"fisheye\" perspective.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 2.5mm CS lens suitable for imaging planets or galaxies?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this lens is not designed for high-magnification imaging. Its purpose is to provide the widest possible field of view, which means planets and galaxies would appear as unresolved points of light. For detailed imaging of celestial objects, you need a telescope with a much longer focal length.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 2.5mm CS lens to build a meteor camera for the Perseids?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. This is an ideal use case. The 2.5mm focal length will capture a massive swath of the sky, maximizing your chances of recording meteor trails during major showers like the Perseids or Geminids without needing to aim the camera precisely.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWould this 2.5mm CS lens work for a permanent cloud monitoring station?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it is perfectly suited for this role. Mounted in a weatherproof enclosure and connected to a small astronomy camera, the 2.5mm CS lens can provide a continuous, horizon-to-horizon view of your local sky conditions, day or night.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e\u003ca title=\"Player One 2-Year Warranty\" href=\"https:\/\/davidastro.com\/pages\/player-one-warranty-policy\" target=\"_blank\"\u003ePlayer One 2-Year Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Player One","offers":[{"title":"Default Title","offer_id":52913427841309,"sku":"POA-25LENS","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PlayerOne-2-5mm-CS-lens-1_d1dc43d2-3bb0-49a5-aaaf-81455b4f11b2.jpg?v=1789090965"},{"product_id":"player-one-2-1mm-cs-lens","title":"Player One 2.1mm CS lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2.1mm Focal Length\u003c\/li\u003e\n\u003cli\u003eCS-Mount Interface\u003c\/li\u003e\n\u003cli\u003e190° Field of View on 1\/2\" Sensors\u003c\/li\u003e\n\u003cli\u003e150° Field of View on 1\/3\" Sensors\u003c\/li\u003e\n\u003cli\u003eAll-Sky and Wide-Field Monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003e2.1mm CS lens\u003c\/h2\u003e\n\u003cp\u003eThis 2.1mm CS-mount lens is engineered for extreme wide-angle applications, delivering a 150° field of view when attached to a camera with a 1\/3\" sensor. When paired with a larger 1\/2\" sensor, the imaging circle expands to a full 190°, capturing a hemispheric vista ideal for all-sky cameras, meteor detection, and security monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual-Sensor Field of View: 150° on 1\/3\" and 190° on 1\/2\" Sensors\u003c\/h3\u003e\n\u003cp\u003eThe lens's utility is defined by the sensor it illuminates. On a smaller 1\/3\" sensor, common in guide cameras and planetary imagers, it produces a 150° diagonal field, offering a vast sky view suitable for wide-field framing or situational awareness. Attaching the lens to a camera with a 1\/2\" sensor utilizes the full image circle, creating a 190° fisheye perspective that can see from horizon to horizon in a single frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of camera is the 2.1mm CS lens compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis lens is designed for cameras that use the \u003cstrong\u003eCS-mount standard\u003c\/strong\u003e. This includes many dedicated all-sky cameras, security and surveillance cameras, and some specific astronomical guide cameras. It is not compatible with C-mount cameras without an adapter, nor will it work with DSLR or mirrorless cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the 2.1mm CS lens have two different fields of view listed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe field of view depends entirely on the size of the camera sensor you pair it with. The lens projects a circular image; a smaller sensor captures a smaller portion of that circle, while a larger sensor captures more of it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn a 1\/3\" sensor:\u003c\/strong\u003e The field of view is 150°.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn a 1\/2\" sensor:\u003c\/strong\u003e The field of view increases to 190°.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 2.1mm CS lens to build a meteor camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application. For maximum sky coverage to capture meteor showers like the Perseids or Geminids, you should pair the 2.1mm lens with a 1\/2\" sensor camera. This combination achieves the 190° field of view, ensuring you can monitor the largest possible patch of sky all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 2.1mm CS lens suitable for use as a wide-field guider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile technically possible, it is not recommended for precise guiding. The extremely short 2.1mm focal length results in a very low image scale (many arcseconds per pixel), making it difficult for guiding software to detect the small star movements needed for accurate corrections on a long focal length telescope. It is designed for imaging the entire sky, not for high-magnification guiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this 2.1mm CS lens have adjustable focus or aperture?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLenses of this type are typically fixed-aperture and are focused by adjusting the lens's distance to the sensor by threading it in or out of the camera's CS-mount. Once focus is achieved for infinity, it is often locked in place for dedicated applications like all-sky monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 2.1mm CS lens show the entire Milky Way?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, when used with a 1\/2\" sensor to achieve the 190° field of view, this lens can easily capture the entire visible arch of the Milky Way in a single shot, from one horizon to the other. This makes it excellent for dramatic, wide-field astrophotography and time-lapses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e2.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eCS-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of View (on 1\/3\" sensor)\u003c\/td\u003e\n\u003ctd\u003e150°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of View (on 1\/2\" sensor)\u003c\/td\u003e\n\u003ctd\u003e190°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2.1mm CS Lens\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ca title=\"Player One 2-Year Warranty\" href=\"https:\/\/davidastro.com\/pages\/player-one-warranty-policy\" target=\"_blank\"\u003ePlayer One 2-Year Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Player One","offers":[{"title":"Default Title","offer_id":52913428005149,"sku":"POA-21LENS","price":31.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PlayerOne-2-1mm-CS-lens-1_cd9c6577-f99f-4e5a-a637-41d455761f27.jpg?v=1789090972"},{"product_id":"qhyccd-swir-lens-for-qhy990","title":"QHYCCD SWIR Lens for QHY990\/991","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEngineered for Short-Wave Infrared (SWIR) wavelengths\u003c\/li\u003e\n\u003cli\u003eOptimized for QHY990 and QHY991 SWIR cameras\u003c\/li\u003e\n\u003cli\u003eHigh-transmission coatings for the SWIR band\u003c\/li\u003e\n\u003cli\u003eDesigned for scientific and industrial imaging applications\u003c\/li\u003e\n\u003cli\u003eProvides a complete, integrated imaging solution with QHY SWIR cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSWIR Lens for QHY990\/991\u003c\/h2\u003e\n\u003cp\u003eThis SWIR Lens for QHY990\/991 is engineered to provide a high-transmission optical path specifically for the unique sensitivity range of Short-Wave Infrared sensors. It enables the full capabilities of cameras like the QHY990 and QHY991 by using specialized glass and coatings that are transparent to wavelengths where conventional optics fail, ensuring maximum signal reaches the sensor for scientific and industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptimized Transmission for the SWIR Spectrum\u003c\/h3\u003e\n\u003cp\u003eStandard camera lenses are designed for visible light; their glass and anti-reflection coatings absorb or reflect a significant portion of the SWIR spectrum. This lens is constructed with materials and multi-layer coatings specifically formulated to maximize throughput in the infrared, perfectly matching the operational waveband of QHY's SWIR sensors and preventing signal loss.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for the QHY990 and QHY991\u003c\/h3\u003e\n\u003cp\u003eThis is not a general-purpose lens adapted for infrared use. It is purpose-built to integrate seamlessly with the QHY990 and QHY991 cameras, ensuring both mechanical compatibility and optical alignment. This system-level design approach guarantees that the lens delivers a clean, well-corrected image to the sensor, making it a reliable tool for demanding imaging tasks like agricultural analysis, silicon wafer inspection, or counterfeit detection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a special SWIR lens for the QHY990\/991 camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStandard optical glass used in conventional lenses is often opaque to Short-Wave Infrared (SWIR) light. This dedicated SWIR lens uses specialized glass and coatings that are highly transmissive in the infrared spectrum, ensuring that the maximum amount of light reaches your \u003cstrong\u003eQHY990 or QHY991 sensor\u003c\/strong\u003e for accurate measurements and high-contrast images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat applications benefit from using this SWIR lens with a QHY990 camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis lens is ideal for a range of scientific and industrial applications where SWIR imaging provides unique data. Key uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgricultural Analysis:\u003c\/strong\u003e Assessing crop health and moisture content.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Inspection:\u003c\/strong\u003e Seeing through silicon wafers or detecting material defects invisible to the human eye.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity \u0026amp; Surveillance:\u003c\/strong\u003e Imaging through haze, smoke, or fog.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArt \u0026amp; Document Analysis:\u003c\/strong\u003e Revealing underdrawings or alterations in historical artifacts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SWIR Lens for QHY990\/991 also corrected for the visible spectrum?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis lens is optimized specifically for the SWIR band. While it may pass some visible light, its anti-reflection coatings and optical corrections are not designed for high-fidelity imaging in the visible spectrum. For best results, it should be used exclusively for its intended SWIR applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary advantage of using this lens with a QHY990 or QHY991?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main advantage is system integration. This lens is designed to work as part of a complete solution with the \u003cstrong\u003eQHY990 and QHY991 cameras\u003c\/strong\u003e, ensuring correct mechanical fit, focus, and optical performance without the need for third-party adapters or guesswork. It unlocks the full potential of the camera's SWIR sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this lens work with SWIR cameras other than the QHY990\/991?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed and optimized for the QHY990 and QHY991, it may be compatible with other SWIR cameras that share the same mechanical interface and sensor format. However, performance is only guaranteed with the specified QHY models. Users should verify compatibility before purchasing for use with other equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use standard 1.25\" or 2\" astronomy filters with this SWIR lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCompatibility with standard astronomy filters is not specified. Most astronomy filters are designed to block infrared light (IR-cut) or pass specific visible-light narrow bands, making them unsuitable for SWIR imaging. For SWIR applications, you would typically use specialized long-pass or band-pass filters designed for infrared wavelengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/qhyccd-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eQHYCCD Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":52942983627037,"sku":"QHY-070005","price":553.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/QHYCCD-SWIR-Lens-for-QHY990-991-1_fbcf5032-fd4b-4c8d-9ba7-eeb76fcb2786.jpg?v=1789614809"}],"url":"https:\/\/davidastro.com\/fr-us\/collections\/camera-lenses-and-adapters.oembed","provider":"David Astro","version":"1.0","type":"link"}