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Photography

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by

heather gilmore

on 18 November 2016

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Transcript of Photography

first camera
-projected image
-lens added 1568
-1600's became portable
-paper placed on the other side of box
Photography
"It was known in the late 18th century that an image (from a stencil) could be formed on material soaked in silver nitrate, but there was no means of fixing that image until Sir John Herschel discovered sodium hyposulphite as a fixing agent in 1819..."(Garrett, p.24)
-Camera was a wooden box with a lens
-Used glass plates covered with bitumen compound
-Took 8 hours to capure
Joseph Niepce
first photo - 1826
William Fox Talbot
-paper + salt solution + silver-nitrate solution = light-sensitive silver chloride
-no shutter
-able to produce multiple copies
-when washed with lavender oil, it made a crude image
negative-to-positive - 1841
father of photography
Shutters!!
early 1880's
-Smile!
-Automatic uncovering and covering
-I can see! No blur
-Dry plates were more sensitive
Multiple pictures back to back were possible with
-Rolls of film-
by: George Eastman
Put light-sensitive solution on roll of paper
IMPORTANT for today's photography
That's about it
But Eastman also came up with...
Camera's for all!
-Early disposable camera, just not as disposable
-Point and Shoot
-This is what put cameras in every house
Black and White
to
Color!!
-Lumiere brothers invented autochrome, down fall was that the pictures were transparencies.
-Kodak made it's own transparencies, only slightly better
-In 1942 came Kodacolor
-By the 1960's most people were using color
The Leica
Ur-leica - 1914
Leica 1 - 1925
-35mm speed camera
-focal plane shutter
-refined
-50mm f/3.5 lens
Leica 2 - 1932
-rangefinder
-interchangeable lenses
Leica M3 - 1954
-viewfinder/rangefinder
-shutter speed dial available
-rapid wind lever
-attachable exposure meter
Leicaflex SL - 1968
-close pictures
-through the lense spot exposure
-first SLR camera
Leica M6 - 1984
-viewfinder
-rangefinder is back
-LED display
Leica S1 - 1996
-Digital
What is the Science that allows film to develop and what is the history behind photography?
Background Information
Parts:
-Lens
-Shutter
-Shutter speed dial
-exposure meter
-rapid wind lever
-rangefinder
-viewfinder
-aperture
Other Terms:
-fixing agent
-silver-bromide crystals
The Film
Base layer- very thin, bendable medal or medal substance
Middle layer- prevents reflections
Coating- light-sensitive, contains silver bromide crystals + gold/mercury + pigment sensitizers .
Top layer- scrach proof
capturing the picture
-silver-bromide crystals activate when a ray of light hits them
Black & White
-newer film had different activation levels
Developing
-Activated crystals turn black
-unactivated crystals wash away
First Bath: Developer
Second Bath:
Fixing Bath
-Keeps the negative from being affected
-placed on photographic paper and has a light shined through
Color
The Film
-3 added layers, each sensitive to a different color
Color Developing
-Development Bath
-Fixing Bath
-Wash & Dry
-when light is shined through it switches the colors back
Bibliography
*"History of Photography." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 08 May 2015.
*"The Legend Lives on." Legendary Leicas // All about the Jubilee Year // 100 Years of Leica Photography // World of Leica. N.p., n.d. Web. 08 May 2015.
*Garrett, John. K.I.S.S. Guide to Photography. New York: DK Pub., 2001. Print.
*Amerongen, C. Van. "Black and White Film." The Way Things Work: An Illustrated Encyclopedia of Technology. New York: Simon and Schuster, 1967. N. pag. Print.
*Amerongen, C. Van. "Colour Photography." The Way Things Work: An Illustrated Encyclopedia of Technology. New York: Simon and Schuster, 1967. N. pag. Print.
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