{"id":2050,"date":"2022-06-28T16:01:11","date_gmt":"2022-06-28T14:01:11","guid":{"rendered":"https:\/\/motsdaubepine.fr\/caussemots\/?page_id=2050"},"modified":"2025-11-21T15:58:57","modified_gmt":"2025-11-21T14:58:57","slug":"camera-altair-294c","status":"publish","type":"page","link":"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/camera-altair-294c\/","title":{"rendered":"Camera ALTAIR 294C"},"content":{"rendered":"<p><a href=\"https:\/\/www.altairastro.com\/altair-hypercam-294c-pro-tec-cooled-116mp-colour-cmos-camera-52-p.asp\">Sp\u00e9cifications<\/a><\/p>\n<p><a href=\"https:\/\/www.pierro-astro.com\/materiel-astronomique\/marques\/altair-astro\/hypercam-294c-pro-tec-altair-astro_detail\">R\u00e9f\u00e9rences et caract\u00e9ristiques<\/a><\/p>\n<p>Bac focus : Sensor surface distance from flat end of CS-mount adaptor: 17.5 mm (Distance de la surface du capteur depuis l&rsquo;extr\u00e9mit\u00e9 plate de l&rsquo;adaptateur \u00e0 monture CS : 17,5 mm)<\/p>\n<p>T\u00e9lescope et Lunettes recommand\u00e9s : Hypercam 183M or 26M series cameras are suggested for shorter focal lengths). In particular the Hypercam 294C is recommended for Altair Wave Series 115mm, 130mm and 152mm refractors, 200mm and larger Newtonians, and Schmidt Cassagrains (SCTs) such as the Meade and Celestron ranges, Celestron Hyperstar and RASA scopes. Basically telescopes with a larger spot size are more suitable for the 294C sensor pixel size. For lunar and planetary imaging, at long focal lengths, the 294C is is quite a formidable solar system camera.<\/p>\n<p><a href=\"https:\/\/www.amateurastrophotography.com\/altair-hypercam\">Article test-1 <\/a><\/p>\n<p><a href=\"http:\/\/eric-blineau.fr\/category\/conseils\/\">Article test-2<\/a><\/p>\n<p><a href=\"http:\/\/sebastrophoto.fr\/category\/altair-hypercam-294c-pro-tec\/page\/2\/\">Article test-3<\/a><\/p>\n<p><a href=\"http:\/\/sebastrophoto.fr\/test-camera-altair-hypercam-294c-pro-tec\/\">Article test-4<\/a><\/p>\n<h4><strong>Pr\u00e9paration du t\u00e9lescope<\/strong><\/h4>\n<p>La collimation et le r\u00e9glage du chercheur doit avoir \u00e9t\u00e9 v\u00e9rifi\u00e9 si le t\u00e9lescope n&rsquo;a pas \u00e9tait utilis\u00e9 depuis plusieurs semaines<\/p>\n<p>Un alignement sur deux ou trois \u00e9toiles de mani\u00e8re classique en visuel en utilisant la raquette est aussi recommand\u00e9 , cette op\u00e9ration peut-\u00eatre r\u00e9alis\u00e9 avec la cam\u00e9ra \u00e0 condition que la mise en station de la monture ne soit pas trop d\u00e9r\u00e9gl\u00e9e , la cam\u00e9ra \u00e0 un champ plus restreint que les oculaires grand champ.<\/p>\n<h4><strong>Montage et branchement de la cam\u00e9ra<\/strong><\/h4>\n<p><strong>Monter de pr\u00e9f\u00e9rence la cam\u00e9ra toujours dans la m\u00eame position sur le porte oculaire , cela permet d&rsquo;avoir les dark , plus et offsets dans la m\u00eame orientation que les lights.<\/strong><\/p>\n<p><strong>Monter la cam\u00e9ra sur le focuser du t\u00e9lescope en utilisant le support des oculaires 2&Prime;<\/strong><\/p>\n<p><strong>Utiliser le c\u00e2ble USB de 3 m\u00e8tres et le c\u00e2ble USB livr\u00e9 avec la cam\u00e9ra pour raccorder la cam\u00e9ra au PC portable , utiliser un port USB 3 , ports USB\u00a0 \u00e0 gauche du PC Portable (<span id=\"page927R_mcid30\" class=\"markedContent\"><span dir=\"ltr\" role=\"presentation\">5 Gbit\/s<\/span><\/span>)<\/strong><\/p>\n<p><strong>Agencer les c\u00e2bles le long du tube Newton et passer par dessus la goutti\u00e8re de l&rsquo;observatoire pour \u00e9viter de d\u00e9connecter un c\u00e2ble pendant les s\u00e9ances de prises de vue<\/strong><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Pour le Newton<\/strong> <\/span>: Visser sur le coulant 2&Prime; fourni avec la cam\u00e9ra , le tubes allonges T2 de 20 mm (bague allonge)\u00a0 , visser l&rsquo;ensemble sur la cam\u00e9ra et monter le tout directement sur le porte oculaire du Newton sans son adaptateur 2&Prime; fourni avec le Newton qui est utilis\u00e9 uniquement pour les oculaires<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2434 size-large\" src=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/08\/Montage-294C-Newton-768x1024.jpg\" alt=\"\" width=\"540\" height=\"720\" srcset=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/08\/Montage-294C-Newton-768x1024.jpg 768w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/08\/Montage-294C-Newton-225x300.jpg 225w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Pour le Maksutov<\/strong><\/span> : Visser le coulant 2&Prime;\u00a0 sur la Cam\u00e9ra ,\u00a0 pas de tubes allonges (bague allonge) et montage directe sur Maksutov\u00a0 sans le renvoi coud\u00e9<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2433 size-large\" src=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/08\/Montage-294C-Maksutov-768x1024.jpg\" alt=\"\" width=\"540\" height=\"720\" srcset=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/08\/Montage-294C-Maksutov-768x1024.jpg 768w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/08\/Montage-294C-Maksutov-225x300.jpg 225w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/p>\n<h4><strong>Orientation de la cam\u00e9ra<\/strong><\/h4>\n<p><a href=\"https:\/\/www.stelvision.com\/astro\/ciel-tout-est-a-lenvers\/\">Ce qu&rsquo;il faut savoir sur l&rsquo;orientation des images \u00e0 travers un instrument astronomique<\/a><\/p>\n<p><a href=\"https:\/\/www.astroclub-andromede.fr\/uploaded\/Tutoriels\/orientation.pdf\">Syst\u00e8me de rep\u00e9rage de l&rsquo;orientation<\/a><\/p>\n<p>La cam\u00e9ra orient\u00e9e suivant le montage ci-dessous ,les digits rouge parall\u00e8le au chercheur du Newton ,\u00a0 positionne le grand c\u00f4t\u00e9 rectangulaire du capteur parall\u00e8le au chercheur<\/p>\n<p><strong><span style=\"color: #ff0000;\">Pour avoir une vue cam\u00e9ra \u00e9quivalente l&rsquo;affichage cam\u00e9ra de Stellarium , tourner la cam\u00e9ra de\u00a0 45 \u00b0 dans le sens des aiguilles d&rsquo;une montre. Les voyants sont perpendiculaires au chercheur et dirig\u00e9 dans la direction du miroir primaire ( A tester)<br \/>\n<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2772 size-full alignnone\" src=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-scaled.jpg\" alt=\"\" width=\"1920\" height=\"2560\" srcset=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-scaled.jpg 1920w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-225x300.jpg 225w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-768x1024.jpg 768w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-1152x1536.jpg 1152w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2023\/05\/Orientation-camera-1536x2048.jpg 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Montage Camera sur Barlow 2x<\/strong> <\/span><\/p>\n<p>Montage bralow sur coulant 2&Prime; du Newton , puis montage cam\u00e9ra sur Barlow sans l&rsquo; entre toise 2&Prime; de la cam\u00e9ra<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3661 size-large\" src=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2024\/08\/Montage-camera-sur-Barlow-2X-768x1024.jpg\" alt=\"\" width=\"540\" height=\"720\" srcset=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2024\/08\/Montage-camera-sur-Barlow-2X-768x1024.jpg 768w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2024\/08\/Montage-camera-sur-Barlow-2X-225x300.jpg 225w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2024\/08\/Montage-camera-sur-Barlow-2X-1152x1536.jpg 1152w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2024\/08\/Montage-camera-sur-Barlow-2X-1536x2048.jpg 1536w, https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2024\/08\/Montage-camera-sur-Barlow-2X-scaled.jpg 1920w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #0000ff;\">Lancer Altair Capture , qui doit d\u00e9tecter la cam\u00e9ra et afficher ce que la camera voie \u00e0 travers le t\u00e9lescope<\/span><\/strong><\/p>\n<p><strong><span style=\"color: #0000ff;\">Avec SharpCap , s\u00e9lectionner la cam\u00e9ra Altair et passer en mode LiveView<\/span><\/strong><\/p>\n<p><strong><span style=\"color: #0000ff;\">Si l&rsquo;\u00e9cran du PC affiche ce qui est point\u00e9 par le t\u00e9lescope (le ciel par exemple) , la cam\u00e9ra est op\u00e9rationnelle<\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>R\u00e9glage de base avec SharpCAP pour estimer les temps de poses et gains , centrer la cible , pour la nettet\u00e9<br \/>\n<\/strong><\/p>\n<ul>\n<li>Format de la zone capture , espace colorim\u00e9trique RGB24 ou 32 , format de sortie JPEG ou PNG<\/li>\n<li>Activer l&rsquo;ajustement de la balance des blancs pour avoir une image en couleur. <strong>Attendre quelques secondes pour que le r\u00e9glage soit pris en compte<\/strong><\/li>\n<li>Ajuster la limite de fr\u00e9quence de prise de vue pour la vision en directe en fonction du besoin , pour le centrage de l&rsquo;image ou r\u00e9gler la nettet\u00e9 une ou 2 images par seconde est suffisant , augmenter la fr\u00e9quence pour affiner les r\u00e9glages<\/li>\n<\/ul>\n<p><strong>R\u00e9glage de base avec SharpCAP pour l\u2019enregistrement des images pour les traiter ult\u00e9rieurement avec SIRIL ou Registax pour les vid\u00e9o <\/strong><\/p>\n<ul>\n<li>Format de la zone capture , espace colorim\u00e9trique RAW 16 ou RAW 8\u00a0 , format de sortie FITS ou SER pour les vid\u00e9os<\/li>\n<li>Rester sur les valeurs par d\u00e9faut de la balance des couleurs , m\u00eame si l&rsquo;image de visualisation est verte , la balance des couleurs sera mieux trait\u00e9e par SIRIL ou Registax que SharpCap \u00e0 la vol\u00e9e<\/li>\n<\/ul>\n<p><strong>Pour conserver ces r\u00e9glages de d\u00e9part d&rsquo;une session \u00e0 l&rsquo;autre<\/strong><\/p>\n<ul>\n<li>Aller sur param\u00e8tres , cocher restaurer automatiquement les derniers param\u00e8tres utilis\u00e9s , sortir de SharpCap<\/li>\n<li>Relancer SharpCap ,\u00a0 revenir sur param\u00e8tres , et d\u00e9cocher restaurer automatiquement les derniers param\u00e8tres utilis\u00e9s , sortir de SharpCap<\/li>\n<li>Les derniers param\u00e8tres de d\u00e9marrage de bases seront conserv\u00e9s<\/li>\n<li>Autre solution pour avoir un r\u00e9glage de base de la cam\u00e9ra : Charger le profile de capture : D\u00e9marrage Standard<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/reglage-nettete\/\"><strong>R\u00e9glage de la nettet\u00e9<\/strong><\/a><\/h4>\n<p>&nbsp;<\/p>\n<h4><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/exposition-et-gain\/\"><strong>R\u00e9glage du gain<\/strong><\/a><\/h4>\n<p>&nbsp;<\/p>\n<h4><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/la-lune-altair-camera\/\"><strong>Photographier la lune<\/strong><\/a><\/h4>\n<p>&nbsp;<\/p>\n<h4><strong><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/objets-tres-brillants\/\">Objets tr\u00e8s brillants<\/a><a href=\"https:\/\/www.astrocrescent.com\/post\/altair-capture-tutorial-1\"> : Clusters d&rsquo;\u00e9toiles , amas globulaires et quelques amas plan\u00e9taire)<\/a><br \/>\n<\/strong><\/h4>\n<p>&nbsp;<\/p>\n<h4><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/objets-du-ciel-profond\/\"><strong>Objets du ciel profond : Galaxies , n\u00e9buleuses<\/strong><\/a><\/h4>\n<p>&nbsp;<\/p>\n<h4><strong>Utilisation de SharpCap Pro<br \/>\n<\/strong><\/h4>\n<p><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/sharpcap-pro\/\">Guides de r\u00e9f\u00e9rences<\/a><\/p>\n<p><span style=\"color: #0000ff;\">Configuration et\u00a0 utilisation SharpCap<\/span><\/p>\n<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/wp-content\/uploads\/2022\/07\/Configuration-et-utilisation-SharpCap.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"bottom\" data-toolbar-fixed=\"off\">Configuration et utilisation SharpCap<\/a><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sp\u00e9cifications R\u00e9f\u00e9rences et caract\u00e9ristiques Bac focus : Sensor surface distance from flat end of CS-mount adaptor: 17.5 mm (Distance de la surface du capteur depuis l&rsquo;extr\u00e9mit\u00e9 plate de l&rsquo;adaptateur \u00e0 monture CS : 17,5 mm) T\u00e9lescope et Lunettes recommand\u00e9s : <a class=\"more-link\" href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/camera-altair-294c\/\">Lire plus &#8230;<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2050","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Camera ALTAIR 294C - L&#039;observatoire du Causse...mots<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/camera-altair-294c\/\" 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