☺What is photography?☺
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Answer:
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Explanation:
the art or practice of taking and processing photos and pictures is called photography
the history of photography
The First Cameras
The basic concept of photography has been around since about the 5th century B.C.E. It wasn't until an Iraqi scientist developed something called the camera obscura in the 11th century that the art was born.
Even then, the camera did not actually record images, it simply projected them onto another surface. The images were also upside down, though they could be traced to create accurate drawings of real objects such as buildings.
The first camera obscura used a pinhole in a tent to project an image from outside the tent into the darkened area. It was not until the 17th century that the camera obscura became small enough to be portable. Basic lenses to focus the light were also introduced around this time.
The First Permanent Images
Photography, as we know it today, began in the late 1830s in France. Joseph Nicéphore Niépce used a portable camera obscura to expose a pewter plate coated with bitumen to light. This is the first recorded image that did not fade quickly.
Niépce's success led to a number of other experiments and photography progressed very rapidly. Daguerreotypes, emulsion plates, and wet plates were developed almost simultaneously in the mid- to late-1800s.
With each type of emulsion, photographers experimented with different chemicals and techniques. The following are the three that were instrumental in the development of modern photography.
Daguerreotype
Niépce's experiment led to a collaboration with Louis Daguerre. The result was the creation of the daguerreotype, a forerunner of modern film.
A copper plate was coated with silver and exposed to iodine vapor before it was exposed to light.
To create the image on the plate, the early daguerreotypes had to be exposed to light for up to 15 minutes.
The daguerreotype was very popular until it was replaced in the late 1850s by emulsion plates.
Emulsion Plates
Emulsion plates, or wet plates, were less expensive than daguerreotypes and required only two or three seconds of exposure time. This made them much more suited to portrait photographs, which was the most common use of photography at the time. Many photographs from the Civil War were produced on wet plates.
These wet plates used an emulsion process called the Collodion process, rather than a simple coating on the image plate. It was during this time that bellows were added to cameras to help with focusing.
Two common types of emulsion plates were the ambrotype and the tintype. Ambrotypes used a glass plate instead of the copper plate of the daguerreotypes. Tintypes used a tin plate. While these plates were much more sensitive to light, they had to be developed quickly. Photographers needed to have chemistry on hand and many traveled in wagons that doubled as a darkroom.
Dry Plates
In the 1870s, photography took another huge leap forward. Richard Maddox improved on a previous invention to make dry gelatine plates that were nearly equal to wet plates in speed and quality.
These dry plates could be stored rather than made as needed. This allowed photographers much more freedom in taking photographs. The process also allowed for smaller cameras that could be hand-held. As exposure times decreased, the first camera with a mechanical shutter was developed.
Cameras for Everyone
Photography was only for professionals and the very rich until George Eastman started a company called Kodak in the 1880s.
Eastman created a flexible roll film that did not require constantly changing the solid plates. This allowed him to develop a self-contained box camera that held 100 film exposures. The camera had a small single lens with no focusing adjustment.
The consumer would take pictures and send the camera back to the factory for the film to be developed and prints made, much like modern disposable cameras. This was the first camera inexpensive enough for the average person to afford.
The film was still large in comparison to today's 35mm film. It was not until the late 1940s that 35mm film became cheap enough for the majority of consumers to use.
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Explanation:
Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.