{"id":4466,"date":"2019-06-23T19:30:54","date_gmt":"2019-06-23T23:30:54","guid":{"rendered":"http:\/\/gorga.org\/blog\/?p=4466"},"modified":"2019-06-23T19:16:11","modified_gmt":"2019-06-23T23:16:11","slug":"experiments-with-slits","status":"publish","type":"post","link":"http:\/\/gorga.org\/blog\/?p=4466","title":{"rendered":"Experiments with Slits"},"content":{"rendered":"\n<p>We had nine cords of wood delivered on Thursday. Thus, these days, I spend my mornings stacking firewood. I am trying to do about a cord each day.<\/p>\n\n\n\n<p>Afternoons, however, are for experiments.<\/p>\n\n\n\n<p>These photos were made by replacing the lens in my camera obscura with a slit made by placing two razor blades very close together. The slit acts similarly to a pinhole in forming an image, except that the image is stretched out along the length of the slit. I have placed the slit on the camera (with tape, nothing fancy!) at a roughly forty-five degree angle.<\/p>\n\n\n\n<p>I took my experiment for a walk around the yard just to &#8220;get a feel&#8221; of what it might do,<\/p>\n\n\n\n<p>The viewfinder of the digital camera is very dim; I can often see only a couple of the brightest spots in the scene. Thus framing is imprecise.<\/p>\n\n\n\n<p>By cranking up the ISO as high as it goes (3200  on my little Nikon 1 V1), I can get a reasonable shutter speed; 1\/4th to 1\/20 of a second. I deal with the horrible noise this causes in the computer, but since nothing is really sharp to begin with heavy noise reduction seems to work fine.<\/p>\n\n\n\n<p>I will be as interested as anyone else to see where this experiment leads!<\/p>\n\n\n<p>[scrollGallery id=655 &#8211; autoscroll = false width = 600 height = 600 useCaptions = true]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We had nine cords of wood delivered on Thursday. Thus, these days, I spend my mornings stacking firewood. I am trying to do about a cord each day. Afternoons, however, are for experiments. These photos were made by replacing the lens in my camera obscura with a slit made by placing two razor blades very [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"yes","footnotes":""},"categories":[92,111,62],"tags":[113],"class_list":["post-4466","post","type-post","status-publish","format-standard","hentry","category-monadnock-region","category-summer","category-the-new-yard-environs","tag-experiments"],"_links":{"self":[{"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4466"}],"version-history":[{"count":4,"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4466\/revisions"}],"predecessor-version":[{"id":4471,"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/4466\/revisions\/4471"}],"wp:attachment":[{"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4466"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/gorga.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}