What is a camera obscura? What is the principal of optics that makes it work?
“A camera obscura, which is literally means ‘darkened room.’ It uses a lens and a sequence of mirrors to project an image of the surrounding landscape onto a viewing surface.” (http://www.scopex.co.za/files/Camera-obscura-ML-1207.pdf) “The principle of optics that makes it work was light travels in a straight line and when some of the rays reflected form a bright subject passes through a small hole in thin material they do not scatter but cross and reform as an upside down image on a flat surface held parallel to the hole.” (brightbytes.com/cosite/what.html)
Who used the camera obscura before the invention of photography?
“The term camera obscure was first used by …show more content…
Some time around 1816, Niépce made printed-out negative images on paper by using a camera obscura and partially fixed them with nitric acid. Not satisfied with the process, he moved on to another light sensitive material, asphaltum.” “Talbot understand how the percentages of silver nitrate to sodium chloride affected sensitivity.” (http://faculty.georgetown.edu/irvinem/theory/Osterman-Romer-history-of-photography-ex.pdf)
What did Louise Daguerre and Nicephore Niepce contribute to the invention of photography?
Louise Daguerre and Nicephore Niepce contributed to the invention of photography by Daguerre creating an image on a silver-plated copper, overlaid with silver iodide, and developed with mercury. Nicephore Niepce used photosensitive paper with the photos.
What did Fox Talbot contribute to the invention of photography?
“Fox Talbot contributed the idea of the development of the calotype, an early photographic process that was an improvement over the daguerreotype of the French inventor L.-J.-M. Daguerre. Talbot’s calotype involved the use of a photographic negative.” …show more content…
(what process was used to create it?)
“A calotype is an early photographic technique invented by William Henry Fox Talbot. In this technique, a sheet of paper coated with silver chloride was exposed to light in a camera obscura;those areas hit by light become dark in tone, yielding a negative image.” (https://www.britannica.com/technology/calotype) What did the first cameras look like? What did most cameras have in common prior to 1859?
“The first camera looked like a simple box with a small peep hole in it. Most cameras prior to 1859 were pinhole cameras.” (http://photodoto.com/camera-history-timeline/)
Why did photography become a popular medium in the mid 19th century?
Photography became a popular medium in the mid 19th century because photographic portraits had become commonplace objects of middle-class life. Cite: https://www.gilderlehrman.org/history-by-era/art-music-and-film/essays/photography-nineteenth-century-america
What was the first war to be photographed? Who photographed it?
“The first war to be photographed was the Crimean War by British photographers Roger Fenton and James Robertson. “
“A camera obscura, which is literally means ‘darkened room.’ It uses a lens and a sequence of mirrors to project an image of the surrounding landscape onto a viewing surface.” (http://www.scopex.co.za/files/Camera-obscura-ML-1207.pdf) “The principle of optics that makes it work was light travels in a straight line and when some of the rays reflected form a bright subject passes through a small hole in thin material they do not scatter but cross and reform as an upside down image on a flat surface held parallel to the hole.” (brightbytes.com/cosite/what.html)
Who used the camera obscura before the invention of photography?
“The term camera obscure was first used by …show more content…
Some time around 1816, Niépce made printed-out negative images on paper by using a camera obscura and partially fixed them with nitric acid. Not satisfied with the process, he moved on to another light sensitive material, asphaltum.” “Talbot understand how the percentages of silver nitrate to sodium chloride affected sensitivity.” (http://faculty.georgetown.edu/irvinem/theory/Osterman-Romer-history-of-photography-ex.pdf)
What did Louise Daguerre and Nicephore Niepce contribute to the invention of photography?
Louise Daguerre and Nicephore Niepce contributed to the invention of photography by Daguerre creating an image on a silver-plated copper, overlaid with silver iodide, and developed with mercury. Nicephore Niepce used photosensitive paper with the photos.
What did Fox Talbot contribute to the invention of photography?
“Fox Talbot contributed the idea of the development of the calotype, an early photographic process that was an improvement over the daguerreotype of the French inventor L.-J.-M. Daguerre. Talbot’s calotype involved the use of a photographic negative.” …show more content…
(what process was used to create it?)
“A calotype is an early photographic technique invented by William Henry Fox Talbot. In this technique, a sheet of paper coated with silver chloride was exposed to light in a camera obscura;those areas hit by light become dark in tone, yielding a negative image.” (https://www.britannica.com/technology/calotype) What did the first cameras look like? What did most cameras have in common prior to 1859?
“The first camera looked like a simple box with a small peep hole in it. Most cameras prior to 1859 were pinhole cameras.” (http://photodoto.com/camera-history-timeline/)
Why did photography become a popular medium in the mid 19th century?
Photography became a popular medium in the mid 19th century because photographic portraits had become commonplace objects of middle-class life. Cite: https://www.gilderlehrman.org/history-by-era/art-music-and-film/essays/photography-nineteenth-century-america
What was the first war to be photographed? Who photographed it?
“The first war to be photographed was the Crimean War by British photographers Roger Fenton and James Robertson. “