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How Screenshot 2023-04-28 12.17.32 PM do camera's work - Coggle…
How 
do camera's work
Light from an object, or subject, passes into the camera through one or more lenses.
The chemically coated film reacts to the light and records an image, or picture, of the object. Photographers then remove the film from the camera.
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A facial recognition system uses biometrics to map facial features from a photograph or video. It compares the information with a database of known faces to find a match.
Facial recognition can help verify a person's identity, but it also raises privacy issues.
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Much of digital camera design uses the way that our eyes function as a blueprint for how to capture images
If a hacker installs spyware on your phone then there is a good chance they will be able to access your camera and turn it on/off as they please
A camera is an instrument used to record pictures of people and objects. Some cameras record single, still pictures called photographs, while movie cameras and video cameras record moving pictures. The word camera comes from the Latin words camera obscura, which mean “dark chamber,” since the earliest experiments with capturing images took place in a darkened chamber.
A traditional camera is a lightproof box—which can vary in shape according to the type or brand of camera—with an opening at one end where light can be admitted and a device at the other end to hold film. The opening that controls the light is called the aperture, and the part that opens and closes the aperture is called the shutter. The shutter controls the length of time that light is admitted to the camera.
During the process of taking a picture, light from a person or object passes into the camera through one or more lenses. The lenses focus the light onto the film stored in the camera. The chemically coated film reacts to the light and records an image of the object. Photographers can then remove the film from the camera and use special chemicals to make prints of the image on paper.
There are many types of traditional cameras. Some are fully automatic, which means that the camera itself is able to focus and allow in the right amount of light to take a good picture without any changes brought about by the photographer. With an automatic camera, the photographer needs only to aim the camera and press a button. Other cameras allow the photographer to make lighting and focusing adjustments by hand.
In the late 1800s, the U.S. inventor George Eastman made a camera that brought photography to the general public. Before this time cameras were heavy, complicated, and expensive, but Eastman’s camera was small and easy to use. People simply pushed a button to take pictures and then sent the film to Eastman’s factory to be printed. The U.S. inventor Thomas Edison and the French Lumière brothers developed movie cameras in the late 1800s.
The earliest camera was the camera obscura, which was used to view eclipses of the sun. People stood in a small, dark room that had only a tiny hole to let in light. An upside-down image of the scene outside appeared on the wall across from the hole. Later, people made portable boxes that worked like the ancient camera obscura. A mirror reflected the image outside the box and onto a screen.
The structure is the result of meticulous designing and testing. There are some standard formulas, like the 50mm f/1.8 or f/1.4. These are very similar throughout different manufacturers and have been developed long ago.
All light behaves just like that flashlight — it travels in a straight line. But, light also bounces off of objects, which is what allows us to see and photograph objects. When light bounces off an object, it continues to travel in a straight line, but it bounces back at the same angle that it comes in at.
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