{"id":1023,"date":"2010-03-31T15:55:17","date_gmt":"2010-03-31T15:55:17","guid":{"rendered":"http:\/\/wkoopmans.ca\/notebook\/?p=1023"},"modified":"2011-02-22T16:17:21","modified_gmt":"2011-02-23T00:17:21","slug":"rondo-colormatic","status":"publish","type":"post","link":"https:\/\/wkoopmans.ca\/notebook\/?p=1023","title":{"rendered":"Rondo Colormatic"},"content":{"rendered":"<p><span class=\"frame-outer  aligncenter size-large wp-image-1024\"><span><span><span><span><a href=\"http:\/\/wkoopmans.ca\/notebook\/wp-content\/uploads\/2010\/03\/K7_9569.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-1024\" title=\"_K7_9569\" src=\"http:\/\/wkoopmans.ca\/notebook\/wp-content\/uploads\/2010\/03\/K7_9569-1024x680.jpg\" alt=\"_K7_9569\" width=\"415\" height=\"276\" srcset=\"https:\/\/wkoopmans.ca\/notebook\/wp-content\/uploads\/2010\/03\/K7_9569-1024x680.jpg 1024w, https:\/\/wkoopmans.ca\/notebook\/wp-content\/uploads\/2010\/03\/K7_9569-300x199.jpg 300w, https:\/\/wkoopmans.ca\/notebook\/wp-content\/uploads\/2010\/03\/K7_9569.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/span><\/span><\/span><\/span><\/span><\/p>\n<p>The automatic part of this camera no longer works so I thought I would find out why.\u00a0 It turns out that the selenium cell that is around the lens is no longer generating any voltage.\u00a0 It&#8217;s a very simple system where the voltage from the selenium cell deflects a needle connected to a small coil &#8220;galvanometer&#8221;.\u00a0\u00a0 As the shutter is pressed there are two plates that move upward, on the top of these plates are steps that determine how far the plates slide based on where they intersect the needles horizo<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The automatic part of this camera no longer works so I thought I would find out why.\u00a0 It turns out that the selenium cell that is around the lens is no longer generating any voltage.\u00a0 It&#8217;s a very simple system where the voltage from the selenium cell deflects a needle connected to a small coil [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36,6],"tags":[19,64,364],"class_list":["post-1023","post","type-post","status-publish","format-standard","hentry","category-cameras","category-photography","tag-camera","tag-film","tag-photography"],"_links":{"self":[{"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=\/wp\/v2\/posts\/1023"}],"collection":[{"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1023"}],"version-history":[{"count":12,"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=\/wp\/v2\/posts\/1023\/revisions"}],"predecessor-version":[{"id":2450,"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=\/wp\/v2\/posts\/1023\/revisions\/2450"}],"wp:attachment":[{"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wkoopmans.ca\/notebook\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}