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English:

Identifier: americanannualof1892newy (find matches)
Title: The American annual of photography
Year: 1892 (1890s)
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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Text Appearing Before Image:
In the case of extremely rapid shutters the line, A B, may beso short, if the revolutions be only 60 per minute, that theangle, A C B, cannot be accurately measured. I give here, forexample, the result of a very rapid shutter. In this case thedifficulty is increased by the fact that, the lens being only aquarter plate one, the scale is very small. It will be seen thatthe silver ball gives but little more than a spot on the plate.I could only estimate from this that the exposure seemed to besomewhat shorter than y^-g- of a second ; by making a secondexposure with the wheel revolving at 180 revolutions per second,I found it to be T-§-F second. W. K. Burton.
Text Appearing After Image:
Alvey A. Adee, Photo DOUBLES. Levy type Co., Phlla. ANP PHOTOGRAPHIC TIMES ALMANAC. 39 DEVELOPING AND FIXING GELATINE NEGATIVES. It is now pretty generally conceded that the gelatine dryplate, by progressive improvements, has reached a perfectionnearly or quite equaling wet collodion. Far excelling the lat-ter in sensitiveness, and in being always ready for exposure,the gelatine dry plate still lacks some advantages in manipulat-ing which the wet collodion has, inducing experimenters tocontinue their efforts to produce a dry collodion plate whichshall equal the gelatine in rapidity. As yet this consumma-tion has not been reached, though the patient seekers are stillstriving, and occasionally notify us (prematurely) of their suc-cess. The dense structure of gelatine in comparison with theporous texture of collodion opposes the penetration of thedeveloping and fixing baths, making them slow in action, andthe final elimination of the hypo still more tedious and unsat-isfactory. It is sca

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https://www.flickr.com/photos/internetarchivebookimages/14784491905/

Author

Alvey A. Adee (1842-1924)

(Internet Archive Book Images)
Permission
(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
1892
Flickr tags
InfoField
  • bookid:americanannualof1892newy
  • bookyear:1892
  • bookdecade:1890
  • bookcentury:1800
  • booksubject:Photography
  • bookpublisher:New_York___Tennant_and_Ward
  • bookcontributor:Harold_B__Lee_Library
  • booksponsor:Brigham_Young_University
  • bookleafnumber:60
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014
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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14784491905. It was reviewed on 24 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

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The author died in 1924, 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 95 years or fewer.

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