{"id":214,"date":"2015-05-02T21:35:20","date_gmt":"2015-05-02T19:35:20","guid":{"rendered":"http:\/\/www.austrianaviationart.org\/cms\/?p=214"},"modified":"2018-02-25T11:37:03","modified_gmt":"2018-02-25T10:37:03","slug":"bahtinov","status":"publish","type":"post","link":"https:\/\/www.austrianaviationart.org\/cms\/bahtinov\/","title":{"rendered":"Die Bahtinov Maske"},"content":{"rendered":"<p>Wer schon mal versucht hat, exakt auf eine Stern scharf einzustellen, vor allem bei gro\u00dfen Brennweiten wei\u00df, wie schwierig das ist. Nicht nur dass die Sache je nach Stabilit\u00e4t der Montierung oft ziemlich wackelt, sieht man auch die Auswirkungen unserer Atmosph\u00e4re in Form von mehr oder weniger gro\u00dfem Flimmern.<\/p>\n<p>Dazu gibt es eine tolle Einstellhilfe. Einfach eine passende <a title=\"Wikipedia: Bahtinov Maske\" href=\"http:\/\/de.wikipedia.org\/wiki\/Bahtinov-Maske\" target=\"_blank\" rel=\"noopener noreferrer\">Bahtinov Maske<\/a> auf Teleskop oder Objektiv legen. Der Effekt ist ph\u00e4nomenal!<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/2014\/09\/BahtinovMaske.jpg\" alt=\"Bathinov Maske \" \/><\/p>\n<p>Deneb &#8211; normal scharf gestellt<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/2014\/09\/Bahtinov_Deneb_ohne.jpg\" alt=\"Deneb - alpha CYG\" \/><\/p>\n<p>Deneb scharf gestellt mit der Bathinov Maske<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/2014\/09\/Bahtinov_deneb.jpg\" alt=\"Deneb, schwarfgestellt mit Hilfe der Bathinov Maske\" \/><\/p>\n<p>F\u00fcr das Samyang 135\/2 habe ich jetzt eine eigene Bahtinovmaske von <a href=\"https:\/\/www.astrobin.com\/users\/dakloifarwa\/\" target=\"_blank\" rel=\"noopener noreferrer\">Andreas Dietz<\/a> besorgt (<a href=\"https:\/\/www.dakloifarwa.com\/\" target=\"_blank\" rel=\"noopener\">Homepage<\/a>):<\/p>\n <div id=\"wppa-container-wrapper-1\" class=\"alignnone wppa-container-wrapper \" style=\"width:100%;clear:both;padding:0;position:relative;\"><div id=\"wppa-container-1\" style=\"width:100%;\" class=\"wppa-container wp-caption\"><div style=\"font-size:0;line-height:0\"><img fetchpriority=\"high\" decoding=\"async\" id=\"ph-696-1\" title=\"170516 Bahtinovmaske f Samyang135\/2\" style=\"width:100%;margin:0;height:auto;padding:4px;border:1px solid #777777;box-sizing:border-box;background-color:#cccccc;border-radius:5px;\" width=\"602\" height=\"602\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/wppa\/696.jpg?ver=32\" alt=\"170516 Bahtinovmaske f Samyang135\/2\" class=\"size-medium wppa-sphoto\" loading=\"eager\"><\/div><div class=\"wp-caption-text\"><\/div><svg id=\"wppa-ajax-spin-1\" class=\"wppa-ajax-spin uil-default\" width=\"120px\" height=\"120px\" viewBox=\"0 0 100 100\" preserveAspectRatio=\"xMidYMid\" stroke=\"\" style=\"width:120px; height:120px; position:fixed; top:50%; margin-top:-60px; left:50%; margin-left:-60px; opacity:1; display:none; fill:#666666; background-color:#dddddd; border-radius:12px;\"><rect x=\"0\" y=\"0\" width=\"100\" height=\"100\" fill=\"none\" class=\"bk\"><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(0 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(22.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.09375s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(45 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.1875s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(67.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.28125s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(90 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.375s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(112.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.46875s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(135 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.5625s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(157.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.65625s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(180 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.75s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(202.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.84375s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(225 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"0.9375s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(247.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"1.03125s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(270 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"1.125s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(292.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"1.21875s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(315 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"1.3125s\" repeatCount=\"indefinite\" ><\/rect><rect class=\"wppa-ajaxspin\" x=\"47\" y=\"40\" width=\"6\" height=\"20\" rx=\"3\" ry=\"3\" transform=\"rotate(337.5 50 50) translate(0 -32)\"><animate attributeName=\"opacity\" from=\"1\" to=\"0\" dur=\"1.5s\" begin=\"1.40625s\" repeatCount=\"indefinite\" ><\/rect><\/svg><\/div><\/div>\n<!-- End [wppa type=\"photo\" photo=\"696\"] \/cms\/wp-json\/wp\/v2\/posts\/214 oc 1 29 queries in 12.6 ms. at 8:23. Max mem: 48.50 Mb. -->\n<p>Man hat ja nicht immer Jupiter g\u00fcnstig stehn, an dessen Monden man sch\u00f6n scharf stellen kann &#8211; hier ein Bild mit Samyang 135\/2 + MC14 (1:1 crop):<br \/>\n <div id=\"wppa-container-wrapper-2\" class=\"alignnone wppa-container-wrapper \" style=\"width:100%;clear:both;padding:0;position:relative;\"><div id=\"wppa-container-2\" style=\"width:100%;\" class=\"wppa-container wp-caption\"><div style=\"font-size:0;line-height:0\"><img decoding=\"async\" id=\"ph-698-2\" title=\"1705095 Jupiter \" style=\"width:100%;margin:0;height:auto;padding:4px;border:1px solid #777777;box-sizing:border-box;background-color:#cccccc;border-radius:5px;\" width=\"410\" height=\"269\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/wppa\/698.jpg?ver=32\" alt=\"1705095 Jupiter \" class=\"size-medium wppa-sphoto\" loading=\"eager\"><\/div><div class=\"wp-caption-text\"><\/div><svg id=\"wppa-ajax-spin-2\" class=\"wppa-ajax-spin uil-default\" width=\"120px\" height=\"120px\" viewBox=\"0 0 100 100\" preserveAspectRatio=\"xMidYMid\" stroke=\"\" style=\"width:120px; 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Max mem: 48.50 Mb. --><\/p>\n<p>Dieses Bild zeigt die Wirkung der Maske am Samyang 135\/2+MC14 und rechts am mFT75\/1.8<br \/>\n <div id=\"wppa-container-wrapper-3\" class=\"alignnone wppa-container-wrapper \" style=\"width:100%;clear:both;padding:0;position:relative;\"><div id=\"wppa-container-3\" style=\"width:100%;\" class=\"wppa-container wp-caption\"><div style=\"font-size:0;line-height:0\"><img decoding=\"async\" id=\"ph-699-3\" title=\"Bahtinov \" style=\"width:100%;margin:0;height:auto;padding:4px;border:1px solid #777777;box-sizing:border-box;background-color:#cccccc;border-radius:5px;\" width=\"599\" height=\"217\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/wppa\/699.jpg?ver=32\" alt=\"Bahtinov \" class=\"size-medium wppa-sphoto\" loading=\"eager\"><\/div><div class=\"wp-caption-text\"><\/div><svg id=\"wppa-ajax-spin-3\" class=\"wppa-ajax-spin uil-default\" width=\"120px\" height=\"120px\" viewBox=\"0 0 100 100\" preserveAspectRatio=\"xMidYMid\" stroke=\"\" style=\"width:120px; 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Max mem: 48.50 Mb. --><\/p>\n<p>Links wenn es unscharf ist, in der Bildmitte fast scharf, denn genau scharf wenn der mittlere Strahl exakt in der Mitte steht wie rechts au\u00dfen.<br \/>\nJe k\u00fcrzer die Brennweite desto schwieriger wird am winzigen Stern noch etwas zu erkennen. Aber mit 14 facher Vergr\u00f6\u00dferung geht es auch noch bei 25mm Optik, aber der Stern sollte schon sehr hell sein. Bei \u00e4lteren Kameras die nicht die Liveviewerweiterung II haben, braucht man ihn sowieso, sonst sieht man nur die aller hellsten Sterne.<\/p>\n <div id=\"wppa-container-wrapper-4\" class=\"alignnone wppa-container-wrapper \" style=\"width:100%;clear:both;padding:0;position:relative;\"><div id=\"wppa-container-4\" style=\"width:100%;\" class=\"wppa-container wp-caption\"><div style=\"font-size:0;line-height:0\"><img decoding=\"async\" id=\"ph-700-4\" title=\"170525 StarAdventurer + Bahtinovmaske am Samyang135\/2\" style=\"width:100%;margin:0;height:auto;padding:4px;border:1px solid #777777;box-sizing:border-box;background-color:#cccccc;border-radius:5px;\" width=\"537\" height=\"804\" src=\"https:\/\/www.austrianaviationart.org\/cms\/wp-content\/uploads\/wppa\/700.jpg?ver=32\" alt=\"170525 StarAdventurer + Bahtinovmaske am Samyang135\/2\" class=\"size-medium wppa-sphoto\" loading=\"eager\"><\/div><div class=\"wp-caption-text\"><\/div><svg id=\"wppa-ajax-spin-4\" class=\"wppa-ajax-spin uil-default\" width=\"120px\" height=\"120px\" viewBox=\"0 0 100 100\" preserveAspectRatio=\"xMidYMid\" stroke=\"\" style=\"width:120px; 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Max mem: 50.50 Mb. -->\n","protected":false},"excerpt":{"rendered":"<p>Wer schon mal versucht hat, exakt auf eine Stern scharf einzustellen, vor allem bei gro\u00dfen Brennweiten wei\u00df, wie schwierig das ist. Nicht nur dass die Sache je nach Stabilit\u00e4t der Montierung oft ziemlich wackelt, sieht man auch die Auswirkungen unserer Atmosph\u00e4re in Form von mehr oder weniger gro\u00dfem Flimmern. Dazu gibt es eine tolle Einstellhilfe. &hellip; <a href=\"https:\/\/www.austrianaviationart.org\/cms\/bahtinov\/\" class=\"more-link\"><span class=\"screen-reader-text\">Die Bahtinov Maske<\/span> weiterlesen<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52,59],"tags":[25,26,165,31,166,164,27],"class_list":["post-214","post","type-post","status-publish","format-standard","hentry","category-foto","category-telescope","tag-astrofotografie","tag-astrophotography","tag-bahtinovmaske","tag-howto","tag-samyang-135","tag-scharfstellhilfe","tag-sterne"],"_links":{"self":[{"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/posts\/214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/comments?post=214"}],"version-history":[{"count":7,"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/posts\/214\/revisions"}],"predecessor-version":[{"id":2030,"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/posts\/214\/revisions\/2030"}],"wp:attachment":[{"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/media?parent=214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/categories?post=214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.austrianaviationart.org\/cms\/wp-json\/wp\/v2\/tags?post=214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}