{"id":27198,"date":"2023-11-02T01:03:32","date_gmt":"2023-11-02T05:03:32","guid":{"rendered":"https:\/\/phsc.ca\/camera\/?p=27198"},"modified":"2023-10-31T01:08:12","modified_gmt":"2023-10-31T05:08:12","slug":"time-after-time-3","status":"publish","type":"post","link":"https:\/\/phsc.ca\/camera\/time-after-time-3\/","title":{"rendered":"time after time"},"content":{"rendered":"
\"\"<\/a>

a Kodak Timer – used with a light tight tank and thermometer<\/p><\/div>\n

Toronto<\/strong>. In the glass plate\/film era, a latent image was captured and developed. If necessary. the resulting image could be reversed and enlarged. The earlier media were insensitive to many visible colours created by less energetic light rays. These media were developed under subdued, often red, lighting. The media could be inspected to determine if the development was sufficient for a good print. Such media became known as orthochromatic.<\/p>\n

Eventually the media were increased in sensitivity and to all visible colours. These glass plates\/films were known as panchromatic and had to be developed in total darkness. Since observation throughout the development process was not possible, a new developing method had to be designed. This was the so called time-temperature process. The developer was kept to a universal temperature like 68 degrees Fahrenheit and developed for a fixed time withe duration depending on the media and development formula.<\/p>\n

Under exposure or over exposure could no longer be compensated by developing for more or less time. If the media were “pushed” a stop or two then the time was extended appropriately.<\/p>\n

NB. The title of this post is the title<\/a> of a 1983 song by Cyndi Lauper, sung here<\/a> by Ms Lauper.<\/p>\n","protected":false},"excerpt":{"rendered":"

Toronto. In the glass plate\/film era, a latent image was captured and developed. If necessary. the resulting image could be reversed and enlarged. The earlier media were insensitive to many visible colours created by less energetic light rays. These media … 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":[286,4472,4471,753],"class_list":["post-27198","post","type-post","status-publish","format-standard","hentry","category-history","tag-darkroom","tag-daylight-tank","tag-time-temperature","tag-timer"],"_links":{"self":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/27198","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=27198"}],"version-history":[{"count":3,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/27198\/revisions"}],"predecessor-version":[{"id":27203,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/27198\/revisions\/27203"}],"wp:attachment":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/media?parent=27198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/categories?post=27198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/tags?post=27198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}