{"id":17824,"date":"2020-07-09T04:54:24","date_gmt":"2020-07-09T08:54:24","guid":{"rendered":"http:\/\/phsc.ca\/camera\/?p=17824"},"modified":"2020-07-07T17:52:38","modified_gmt":"2020-07-07T21:52:38","slug":"3-in-1","status":"publish","type":"post","link":"https:\/\/phsc.ca\/camera\/3-in-1\/","title":{"rendered":"3-in-1"},"content":{"rendered":"
\"\"<\/a>

rare 35mm colour camera the Optikotechna Spektaretta<\/a> sold by Leitz Photographica Auction in November, 2002<\/p><\/div>\n

Toronto<\/strong>. Studies in the late 1800s proved three colour bands would create the full spectrum of visible light. Many attempts were made to create the plates necessary for this effort in a reasonable time.<\/p>\n

For about the first half of the last century, cameras were made to take three black and white plates, each through a colour filter simultaneously. Various mirrors and pellicles were devised to expose the monochrome plates (or cut film or roll film). The Wikipedia article on Color photography<\/a> suggests the first such camera was the 1903 Bermpohl (a recent post enquired about Brodie MacPherson’s later camera<\/a>).<\/p>\n

And Camera Wiki<\/a> suggests such beasts were still used in studios for specialized work into the 1950s. They were a very rare design pushed off the market by the minicam revolution and the creation of colour film tri-packs including Kodachrome and Agfacolor for both transparencies and prints. This site discusses the Spekatretta<\/a> camera in more detail.<\/p>\n

NB. The post name comes from an oil common in my youth and suitable for lots of home applications.<\/p>\n","protected":false},"excerpt":{"rendered":"

Toronto. Studies in the late 1800s proved three colour bands would create the full spectrum of visible light. Many attempts were made to create the plates necessary for this effort in a reasonable time. For about the first half of … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1944],"tags":[398,3227,3228],"class_list":["post-17824","post","type-post","status-publish","format-standard","hentry","category-history","tag-camera","tag-tri-color","tag-tri-colour"],"_links":{"self":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/17824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/comments?post=17824"}],"version-history":[{"count":4,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/17824\/revisions"}],"predecessor-version":[{"id":17830,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/17824\/revisions\/17830"}],"wp:attachment":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/media?parent=17824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/categories?post=17824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/tags?post=17824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}