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"Khan Academy." Khan Academy. N.p., n.d. Web. 20 Dec. 2016.
"The Daguerreotype Process." The Daguerreotype Process. N.p., n.d. Web. 20 Dec. 2016.

"America's First Look into the Camera: Daguerreotype Portraits and Views, 1839-1862 History." History - America's First Look into the Camera: Daguerreotype Portraits and Views, 1839-1862 - Collection Connections | Teacher Resources - Library of Congress. N.p., n.d. Web. 20 Dec. 2016.

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On this date in 1839, the French government released Louis Daguerre’s photographic process to the world—for free. The inventor began developing the process with partner Nicéphore Niépce in the early 1830s, securing a thin, silver-plated copper sheet within a camera obscura and exposing the plate to the fumes from iodine crystals, which created a layer of light-sensitive silver iodide. When the photographer removed the camera's cover, the plate was exposed to light. In a darkroom, the plate would be developed with mercury fumes and fixed in a salt solution, creating a daguerreotype.

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Who were the subjects of these pictures most often

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Who were the subjects of these pictures most often

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People in daguerreotype photos were often families, rich people and news reports.

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This French daguerreotype of an arrest in 1847 might be the first-ever news photograph.

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Were there any significant historical moments caught with these cameras/processes?

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Were there any significant historical moments caught with these cameras/processes?

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John William Draper took the first daguerreotype of the moon in 1839 or 1840 from a rooftop in New York.

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Were there any significant historical moments caught with these cameras/processes?

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Were there any significant historical moments caught with these cameras/processes?

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Daguerre took this photo, which is believed to be the earliest to show a living person, in 1838. Because of the long exposure time no moving traffic was captured. But two men—a shoe shiner and his customer—were still enough to leave a trace.

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Artists from the Renaissance and eras onward used a camera obscura, or a small hole in the wall of a darkened box . Light would pass through the hole and project an upside down image of whatever was outside the box. The first photographs required a very slow speed, averaging at 8 hours. These were taken using a camera obscura to expose a copper plate coated in silver and pewter. Niépce’s image looks out of an upstairs window, and part of the blurry quality is due to changing conditions during the long exposure time, thus causing the resolution to be grainy and hard to read. Another challenge was the issue of permanence. Lots of Niépce’s early images simply turned black over time due to continued exposure to light. This problem was largely solved in 1839 by the invention of Hypo. This was a chemical that reversed the light sensitivity of paper.

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What artists were famous for using these devices?

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What artists were famous for using these devices?

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It was used more by politicians, celebrities and the growing middle class.

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What did they do to make it better as technology developed?

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What did they do to make it better as technology developed?

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A dry glass plate was later developed, reducing the inconvenience of the Wet Collodion Method.

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Who made this particular topic critical to the history of photography?

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Who made this particular topic critical to the history of photography?

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“Louis Daguerre invented a new process he dubbed a daguerreotype in 1839, which significantly reduced exposure time and created a lasting result, but only produced a single image.”