File:The American annual of photography (1914) (14593699568).jpg

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English:

Identifier: americanannualof28newy (find matches)
Title: The American annual of photography
Year: 1914 (1910s)
Authors:
Subjects: Photography
Publisher: New York : Tennant and Ward
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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About This Book: Catalog Entry
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objects distinctly at a distance, the dotsmerging and forming a combination image of a color re-sultant which is the addition of all the colors of adjacent dots.It is this latter method and corresponding optical charac-teristic which forms the bajs of the three color processeswith which this article will deal, viz., the Lumiere or Auto-chrome, the Dufay and the Paget. Before proceeding to consider these processes in detail, itwill be necessary to dwell for a moment on another character-istic of colored light, viz., the difference between its action onthe retina of the eye, and its chemical effect upon a photo-graphic plate. We require of a photographic image that it shall duplicatein proper light relation the object as seen by the eye; how-ever, the ordinary plate or film emulsion is insensitive to theyellow, red and infra red portions of the spectrum and highlysensitive to the ultra violet portion. An object, therefore,illuminated by the uninterrupted light of a bright portion of ii8
Text Appearing After Image:
w CMI QOOO sky (which is composed in great part of ultra violet) willshow greater contrasts between lights and shadows thanactually exist to the eye. On the other hand, blue and green will come out as whiteor light shades, whereas yellow and red will appear as blackor dark shades instead of the reverse as viewed by the eye. In order to correct this difficulty it is necessary to findsome way of making the emulsion. I :—Insensitive to ultra violet, 2:—Less sensitive to blue, 3 :—Sensitive to red. Considered additively the color yellow is a combination ofred and green so that a transparent object which appearsyellow by transmitted light is one which absorbs blue andtransmits red and green. It is obvious, therefore, that wemay accomplish i and 2 above, that is, eliminate the ultraviolet and subdue the blue by interposing between the emul-sion and object a yellow transparent filter of just the righthue to transmit the proper amount of blue. The insensitiveness of the emulsion to yell

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https://www.flickr.com/photos/internetarchivebookimages/14593699568/

Author
Fedora E. D. Brown  (1857–1929)  wikidata:Q119670791
 
Description American photographer
Date of birth/death 1857 Edit this at Wikidata 1929 Edit this at Wikidata
Location of birth/death Iowa Edit this at Wikidata California Edit this at Wikidata
Authority file
creator QS:P170,Q119670791
(Internet Archive Book Images)
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Flickr tags
InfoField
  • bookid:americanannualof28newy
  • bookyear:1914
  • bookdecade:1910
  • bookcentury:1900
  • booksubject:Photography
  • bookpublisher:New_York___Tennant_and_Ward
  • bookcontributor:Harold_B__Lee_Library
  • booksponsor:Brigham_Young_University
  • bookleafnumber:166
  • bookcollection:americana
Flickr posted date
InfoField
29 July 2014


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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14593699568. It was reviewed on 24 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

24 September 2015

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The author died in 1929, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 80 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Date/TimeThumbnailDimensionsUserComment
current07:17, 5 December 2015Thumbnail for version as of 07:17, 5 December 20152,576 × 2,078 (1.32 MB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 90°
13:31, 24 September 2015Thumbnail for version as of 13:31, 24 September 20152,078 × 2,580 (1.29 MB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': americanannualof28newy ([https://commons.wikimedia.org/w/index.php?title=Special:Search&profile=default&fulltext=Search&search=insource:/americanannualof28newy/ fin...

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