{"id":6315,"date":"2006-05-25T01:00:06","date_gmt":"2006-05-25T11:00:06","guid":{"rendered":"http:\/\/darkerview.com\/wordpress\/?p=6315"},"modified":"2012-11-15T14:46:06","modified_gmt":"2012-11-16T00:46:06","slug":"dslr-astrophotography","status":"publish","type":"post","link":"https:\/\/darkerview.com\/wordpress\/?p=6315","title":{"rendered":"DSLR Astrophotography"},"content":{"rendered":"<p>Digital SLR cameras make surprisingly good astrophotography cameras on bright objects.  Good sensitivity, low noise and a convenient form factor make these camera a good choice for shooting the night sky.<\/p>\n<p>One useful modification to the camera is removing the standard IR cutoff filter present in cameras and replacing it with a filter that is tuned to let in more of the red.  The new filter should allow light at 656nm, what astronomers call hydrogen alpha, or H\u03b1, the light emitted by neutral hydrogen atoms, the most common element in our universe.  This is the red glow that makes the emission nebulae so colorful.  An astrophotographer can do the filter change themselves, send it to a specialist who can do the work, or buy an already &#8220;modded&#8221; camera.  Canon has produced two special models specifically for the astrophotography market, the EOS 20Da and <a href=\"https:\/\/darkerview.com\/wordpress\/?p=3520\">60Da<\/a>, with this special filter.<\/p>\n<p>Below, one can see the results of using modified, and unmodified cameras and relatively small telescopes&#8230;<\/p>\n<div id='gallery-1' class='gallery galleryid-6315 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6308'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/LunarEclipse20070828s1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Total Lunar Eclipse 28Aug2007\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6308\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6308'>\n\t\t\t\tA total lunar eclipse on the night of August 27-28, 2007 with the Moon deep in the Earth&#8217;s inner shadow. A dark eclipse, this exposure shows a number of stars surrounding the Moon\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6310'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/B72-20060526-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"The Snake Nebula\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6310\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6310'>\n\t\t\t\tB72, the Snake Nebula, single 8 minute exposure at ISO 800, Canon 20Da DSLR camera mounted on a Televue-76 APO telescope with a 0.8x focal reducer\/field flattener\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6313'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/NGC6618-20060525-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"The Eagle and the Swan\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6313\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6313'>\n\t\t\t\tM16 and M17, the Eagle Nebula and Swan Nebula, single 8 minute exposure at ISO 800, Canon 20Da DSLR camera mounted on a Televue-76 APO telescope with a 0.8x focal reducer\/field flattener\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6309'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/NGC0224-20060526-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Andromeda\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6309\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6309'>\n\t\t\t\tThe Andromeda Galaxy, M31, single 8 minute exposure at ISO 800, Canon 20Da DSLR camera mounted on a Televue-76 APO telescope with a 0.8x focal reducer\/field flattener\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6312'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/NGC6523s20060525-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Lagoon Neighborhood\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6312\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6312'>\n\t\t\t\tThe Lagoon Nebula and The Trifid Nebula, single 8 minute exposure at ISO 800, Canon 20Da DSLR camera mounted on a Televue-76 APO telescope with a 0.8x focal reducer\/field flattener\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6314'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/NGC5139s20060525-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Omega Centauri\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6314\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6314'>\n\t\t\t\tOmega Centauri, NGC5139, single 2 minute exposure at ISO 800, Canon 20Da DSLR camera mounted on a Televue-76 APO telescope with a 0.8x focal reducer\/field flattener\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/darkerview.com\/wordpress\/?attachment_id=6311'><img width=\"150\" height=\"150\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2012\/11\/baade20060526-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Baade&#039;s Window\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-6311\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-6311'>\n\t\t\t\tBaade&#8217;s Window, single 8 minute exposure at ISO 800, Canon 20Da DSLR camera mounted on a Televue-76 APO telescope with a 0.8x focal reducer\/field flattener\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Digital SLR cameras make surprisingly good astrophotography cameras on bright objects. Good sensitivity, low noise and a convenient form factor make these camera a good choice for shooting the night sky. One useful modification to the camera is removing the standard IR cutoff filter present in cameras and replacing it with a filter that is &hellip; <a href=\"https:\/\/darkerview.com\/wordpress\/?p=6315\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;DSLR Astrophotography&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[34,182],"tags":[279,716,717,718],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6315"}],"collection":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6315"}],"version-history":[{"count":0,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/6315\/revisions"}],"wp:attachment":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}