{"product_id":"antlia-quad-band-anti-light-pollution-filter-2-mounted","title":"Antlia Quad Band Filtre anti-pollution lumineuse 2\" monté (QUAD-2)","description":"\u003ch1\u003eAntlia Quad Band Filtre anti-pollution lumineuse 2\" monté\u003c\/h1\u003e\n\u003cp\u003eLe filtre antipollution lumineuse à quatre bandes Antlia est un filtre de suppression de lumière pour les caméras couleur et monochromes. Il est capable de photographier la plupart des objets du ciel profond comme les galaxies, les nébuleuses par réflexion, les nébuleuses par émission et les amas d'étoiles d'un emplacement Bortle 8 à Bortle 1, car sa transmission spectrale traverse la région de la lumière visible, la région proche ultraviolette (NUV) et proche infrarouge (NIR). Le filtre à quatre bandes Antlia possède une large bande passante conçue pour faire face à des optiques plus rapides jusqu'au rapport focal f\/2.\u003c\/p\u003e\n\u003cp\u003eCompte tenu des caractéristiques d'efficacité quantique (QE) élevées des dernières caméras dans la région proche infrarouge et de la moindre sensibilité de cette région à la pollution lumineuse artificielle, le filtre de pollution lumineuse à quatre bandes Antlia ajoute une transmission élevée dans la bande proche infrarouge (NIR). Cette conception du spectre améliore le rapport signal\/bruit et le contraste de l'image en capturant les signaux dans les bandes visibles et la région NIR, tout en maintenant un bon équilibre des couleurs et en étant plus facile à gérer en post-traitement.\u003c\/p\u003e\n\u003cp\u003eCertains objets à spectre complet comme M51, M83 possèdent un signal significatif dans la région proche infrarouge (NIR), vous pouvez éventuellement capturer ces objets du ciel profond plus contrastés avec le filtre Antlia Quad Band dans des conditions de pollution lumineuse. Lorsque vous utilisez ce filtre avec un appareil photo doté d'un verre de protection anti-UV\/IR, le signal de transmission de la bande visible est conservé, mais la coupure IR limite votre capacité à capturer des cibles avec un signal infrarouge. Par conséquent, le filtre Antlia Quad Band est plus adapté aux appareils photo dotés d'un verre de protection anti-reflets, car ils peuvent capturer à la fois les signaux NIR et les signaux de bande visible.\u003c\/p\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLes principales fonctionnalités et applications :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLutte contre la pollution lumineuse\u003cbr\u003e Le filtre Antlia Quad Band est une solution efficace pour réduire la pollution lumineuse, car il supprime la plupart des lumières orange-jaune de 589 nm et une partie des lumières bleues des LED\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIl est possible de photographier plus de 95 % des objets du ciel profond\u003c\/li\u003e\n\u003cli\u003eLa conception spectrale unique offre davantage de possibilités pour l'astrophotographie\u003c\/li\u003e\n\u003cli\u003eLa transmittance élevée des principales lignes d'émission Ha\/SII\/OIII\/H-Beta dans la région visible améliore le rapport signal\/bruit et le contraste élevés de l'astrophotographie\u0026nbsp;;\u003c\/li\u003e\n\u003cli\u003eTransmittance de la région proche infrarouge (NIR)\u003c\/li\u003e\n\u003cli\u003eLe passage dans la région proche infrarouge permet de photographier des objets du ciel profond qui ne peuvent pas être photographiés avec d'autres filtres sans transmission NIR\u003c\/li\u003e\n\u003cli\u003eLa large bande passante conçue pour faire face à des optiques plus rapides jusqu'au rapport focal f\/2. - Bon équilibre des couleurs\u003c\/li\u003e\n\u003cli\u003eIl est plus facile d’obtenir un équilibre des couleurs en ajoutant la transmission à courte longueur d’onde\u003c\/li\u003e\n\u003cli\u003eLa fiabilité optique supérieure réduit le post-traitement de l'image\u003c\/li\u003e\n\u003cli\u003eSubstrat de base : Optique, substrat simple\/non collé\u003c\/li\u003e\n\u003cli\u003eQualité de surface : S\/D (rayure\/creusage) = 60\/40 (se référer à MIL-O-13830)\u003c\/li\u003e\n\u003cli\u003eFront d'onde transmis : Lambda\/4 ou mieux. - Parallélisme : moins de 30 secondes d'arc\u003c\/li\u003e\n\u003cli\u003eGarantie : 3 ans contre le délaminage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAnneau de support :\u003c\/h2\u003e\n\u003cp\u003eAnneau standard Antlia : 1,25'' (M28,5*0,6), 2'' (M48*0,75)\u003cbr\u003e Cellule de filtre ultra-mince pour minimiser le vignettage en maximisant l'ouverture claire possible\u003cbr\u003e Finition anodisée noire\u003cbr\u003e Gravure au laser sans décoloration\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eNon recommandé\u0026nbsp;:\u003c\/h2\u003e\n\u003cp\u003eImagerie solaire \u003cbr\u003eObservation visuelle nocturne\u003c\/p\u003e\n\u003ch2\u003eNon autorisé :\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eNE REGARDEZ PAS LE SOLEIL AVEC CE FILTRE\u003c\/strong\u003e\u003cbr\u003e Des lésions oculaires graves peuvent survenir si vous ne respectez pas les avertissements.\u003c\/p\u003e\n\u003ch3\u003eSpécifications techniques\u003c\/h3\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" 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#a7a7a7;\"\u003e\u003cspan style=\"vertical-align: baseline;\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eH-alpha\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10pt; font-weight: bold; vertical-align: baseline;\"\u003eS-II\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10pt; font-weight: bold; vertical-align: baseline;\"\u003eO-III\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10pt; font-weight: bold; vertical-align: baseline;\"\u003eH-bêta\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10pt; font-weight: bold; vertical-align: baseline;\"\u003eNII\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\"\u003e\n\u003ctd colspan=\"1\" rowspan=\"2\" style=\"width: 29.2894%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003eLongueur d'onde\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd colspan=\"1\" rowspan=\"2\" style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e656,3 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-left: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e671,6 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-left: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e495,9 nm,\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd colspan=\"1\" rowspan=\"2\" style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e486,1 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-left: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e658,3 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\"\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-left: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e673,1 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-left: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e500,7 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-left: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e654,8 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38.25pt;\"\u003e\n\u003ctd style=\"width: 29.2894%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003eTransmission\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Microsoft YaHei; font-size: 10.5pt; vertical-align: baseline;\"\u003e＞\u003c\/span\u003e \u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e92%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Microsoft YaHei; font-size: 10.5pt; vertical-align: baseline;\"\u003e＞\u003c\/span\u003e \u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e92%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Microsoft YaHei; font-size: 10.5pt; vertical-align: baseline;\"\u003e＞\u003c\/span\u003e \u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e92%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Microsoft YaHei; font-size: 10.5pt; vertical-align: baseline;\"\u003e＞\u003c\/span\u003e \u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e92%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e92%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\"\u003e\n\u003ctd style=\"width: 29.2894%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003eBlocage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd colspan=\"5\" rowspan=\"1\" style=\"width: 71.0572%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e≥OD4 à 300-1050 nm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38.25pt;\"\u003e\n\u003ctd style=\"width: 29.2894%; white-space: normal; text-align: center; vertical-align: middle; border: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003eÉpaisseur du filtre\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd colspan=\"5\" rowspan=\"1\" style=\"width: 71.0572%; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #a7a7a7; border-bottom: 1px solid #a7a7a7; border-top: 1px solid #a7a7a7;\"\u003e\u003cspan style=\"font-family: Arial; font-size: 10.5pt; vertical-align: baseline;\"\u003e2 mm +\/- 0,05 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 14.25pt;\"\u003e\n\u003ctd style=\"width: 29.2894%; white-space: nowrap; text-align: left; vertical-align: bottom; border-top: 1px solid #a7a7a7;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.2114%;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2025_Quad_Band_filter_spectrum_curve.jpg?v=1737230060\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDans la boîte\u003c\/h3\u003e\n\u003cp\u003eFiltre anti-pollution lumineuse Antlia Quad Band 2\" monté\u003c\/p\u003e\n\u003ch3\u003eGarantie et manuels\u003c\/h3\u003e\n\u003cp\u003eGarantie Antlia de 3 ans contre le délaminage\u003c\/p\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":44272880877797,"sku":"AF-QUAD-2","price":281.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/antlia-quad-band-anti-light-pollution-filter-2-mounted-quad-2-astronomy-plus.webp?v=1715808614","url":"https:\/\/istronomyplus.com\/fr\/products\/antlia-quad-band-anti-light-pollution-filter-2-mounted","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}