{"id":5905,"date":"2020-08-28T08:01:51","date_gmt":"2020-08-28T06:01:51","guid":{"rendered":"http:\/\/www.arnaudom.fr\/wordpress\/?page_id=5905"},"modified":"2020-08-28T08:19:54","modified_gmt":"2020-08-28T06:19:54","slug":"reflexcls","status":"publish","type":"page","link":"https:\/\/www.arnaudom.fr\/wordpress\/reflexcls\/","title":{"rendered":"reflexcls"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5905\" class=\"elementor elementor-5905\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-65d8181 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"65d8181\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b0fa0a1\" data-id=\"b0fa0a1\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-31fff9f elementor-widget elementor-widget-heading\" data-id=\"31fff9f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Test du filtre CLS<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-715bb7e elementor-widget elementor-widget-text-editor\" data-id=\"715bb7e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p><em>Ecrit le 31\/03\/14.<\/em><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-610285b elementor-widget elementor-widget-text-editor\" data-id=\"610285b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p style=\"text-align: center;\"><strong><span style=\"color: #3366ff;\">Pr\u00e9sentation<\/span> <\/strong><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b91f4c2 elementor-widget elementor-widget-text-editor\" data-id=\"b91f4c2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Le filtre CLS permet de faire de la photographie en pr\u00e9sence de pollution lumineuse. Pour la photo avec un APN Canon, deux choix sont possibles : soit utiliser un filtre qui se visse (au coulant 31,75 mm ou 50,8 mm selon les cas), soit utiliser un filtre EOS-Clip, qui sont des filtres con\u00e7us sp\u00e9cialement pour les Canon et qui se glisse directement dans la ba\u00efonnette de l&rsquo;appareil-photo.<\/p><p>J&rsquo;ai donc opt\u00e9 pour un filtre EOS-Clip CLS Astronomik, vendu dans un bo\u00eetier en plastique qui offre une bonne protection.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/cls01.jpg\" alt=\"CLS\" \/><\/div><p>Il existe deux types de filtre : le CLS \u00ab\u00a0simple\u00a0\u00bb et le d\u00e9nomm\u00e9 <strong><span class=\"gras\">CLS-CCD<\/span><\/strong>, qui est adapt\u00e9 aux APN d\u00e9filtr\u00e9s. C&rsquo;est donc pour ce dernier mod\u00e8le que j&rsquo;ai opt\u00e9. Le filtre se glisse directement dans l&rsquo;APN, et accessoiremment prot\u00e8gera le capteur de l&rsquo;appareil-photo de la poussi\u00e8re si on le laisse en place de mani\u00e8re permanente.<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/cls02.jpg\" alt=\"CLS\" \/><\/div>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e4a374 elementor-widget elementor-widget-text-editor\" data-id=\"7e4a374\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p style=\"text-align: center;\"><strong><span style=\"color: #3366ff;\">Premi\u00e8res acquisitions<\/span> <\/strong><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-980c5e0 elementor-widget elementor-widget-text-editor\" data-id=\"980c5e0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Lors de mon premier test, j&rsquo;ai mis un peu de temps \u00e0 faire la mise au point, car en g\u00e9n\u00e9ral je pointais directement l&rsquo;objet \u00e0 photographier et je faisais la mise au point dessus. Sauf qu&rsquo;en proc\u00e9dant ainsi, g\u00e9n\u00e9ralement il n&rsquo;y a que tr\u00e8s peu d&rsquo;\u00e9toiles visibles dans le champ. Avec le filtre CLS en place, plus aucune \u00e9toile n&rsquo;apparaissaient. J&rsquo;ai donc d\u00fb d&rsquo;abord pointer une \u00e9toile tr\u00e8s brillante plutot que l&rsquo;objet choisi, faire la mise au point sur cette \u00e9toile et ensuite revenir sur l&rsquo;objet \u00e0 photographier. Cela ne pose gu\u00e8re de probl\u00e8me avec la monture control\u00e9e par EQMOD, mais j&rsquo;ai donc d\u00fb changer ma fa\u00e7on de faire habituelle.<\/p><p>G\u00e9n\u00e9ralement, en faisant de la photo dans mon jardin, je me contentais de faire des poses de trois minutes maximum, car il est bord\u00e9 par plusieurs lampadaires tr\u00e8s puissants. Selon la zone du ciel que je vise, en trois minutes de pose je peux avoir une portion plus ou moins grande de ma photo qui devient orang\u00e9e \u00e0 cause de ces lumi\u00e8res.<\/p><p>Sur mes premiers tests avec le filtre CLS j&rsquo;ai pu faire des poses de cinq minutes sans que les images brutes ne montrent de trace de pollution lumineuse. Le r\u00e9sultat est donc tr\u00e8s satisfaisant ! Voici un exemple d&rsquo;une brute de cinq minutes sur la galaxie NGC 4565 avec le Newton 200\/800, le Canon 350D et le filtre CLS :<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/cls03.jpg\" alt=\"CLS\" \/><\/div><p>Et voici l&rsquo;image finale obtenue apr\u00e8s traitement de 12 poses de 5 minutes :<\/p><div class=\"centre\"><img decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/www.arnaudom.fr\/Img\/cls04.jpg\" alt=\"CLS\" \/><\/div><p>Bref, le test est donc tr\u00e8s concluant !<\/p><p>Vous pouvez voir <a href=\"http:\/\/www.arnaudom.fr\/wordpress\/ngc4565apn\/\">sur la page de NGC 4565<\/a> le r\u00e9sultat de mes acquisitions.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Test du filtre CLS Ecrit le 31\/03\/14. Pr\u00e9sentation Le filtre CLS permet de faire de la photographie en pr\u00e9sence de pollution lumineuse. Pour la photo avec un APN Canon, deux choix sont possibles : soit utiliser un filtre qui se visse (au coulant 31,75 mm ou 50,8 mm selon les cas), soit utiliser un filtre &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.arnaudom.fr\/wordpress\/reflexcls\/\"> <span class=\"screen-reader-text\">reflexcls<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-5905","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/5905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=5905"}],"version-history":[{"count":5,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/5905\/revisions"}],"predecessor-version":[{"id":5924,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/5905\/revisions\/5924"}],"wp:attachment":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=5905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}