{"id":55,"date":"2024-11-08T20:04:31","date_gmt":"2024-11-08T20:04:31","guid":{"rendered":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/?page_id=55"},"modified":"2024-11-12T19:46:38","modified_gmt":"2024-11-12T19:46:38","slug":"reflex-cameras","status":"publish","type":"page","link":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/home\/reflex-cameras\/","title":{"rendered":"Single-lens and Twin-lens Reflex Cameras"},"content":{"rendered":"\n<p>Photographers used Single-Lens Reflex (SLR) cameras in the mid-nineteenth century. They effectively allowed photographers to see and focus by viewing the image in a 45 degree mirror. However, pulling the mirror up right before the exposure often jostled the camera. A faster, mechanical SLR camera solved this problem. Have you ever heard the \u201cclick\u201d of a camera? That\u2019s the sound of the mirror flipping up. SLR 35mm cameras became the most sought after cameras after World War II.<\/p>\n\n\n\n<p>Before the invention of twin-lens reflex cameras, photographers had to insert the sensitized glass plate into the camera after focusing\u2014potentially unfocusing the desired image plane as the film is put in place. A camera with two lens fixed this problem. By placing a mirror behind the second lens, photographers could see the image and focus with a viewfinder with out exposing the film behind the primary lens.&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Photographers used Single-Lens Reflex (SLR) cameras in the mid-nineteenth century. They effectively allowed photographers to see and focus by viewing the image in a 45 degree mirror. However, pulling the&hellip;<\/p>\n","protected":false},"author":4,"featured_media":179,"parent":10,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/pages\/55"}],"collection":[{"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/comments?post=55"}],"version-history":[{"count":2,"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/pages\/55\/revisions"}],"predecessor-version":[{"id":188,"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/pages\/55\/revisions\/188"}],"up":[{"embeddable":true,"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/pages\/10"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/media\/179"}],"wp:attachment":[{"href":"https:\/\/library.umbc.edu\/specialcollections\/cavanaugh\/wp-json\/wp\/v2\/media?parent=55"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}