camera obscura

Examples of camera obscura in the following topics:

• The Camera

  • The word camera comes from the Latin phrase camera obscura, which means "dark chamber. " The camera obscura was an early instrument for projecting images from slides.
  • The camera that you use today is an evolution of the camera obscura.
  • The camera lens allows the light to enter into the camera and is typically convex.
  • The f-number on a camera controls the shutter speed.
  • Some cameras have a fixed focus, and only objects of a certain size at a certain distance from the camera will be in focus.

• Development of Photography

  • Camera photography was invented in the first decades of the 19th century.
  • Camera photography was invented in the first decades of the 19th century, and even at this early point, it was able to capture more information, and with greater speed, than painting or sculpture.
  • In the 5th century BCE, before the first camera was ever invented, Chinese and Greek philosophers described the "pinhole camera," a lightproof box with a tiny hole in one side that allowed light to pass through and project an inverted image one side.
  • The camera obscura is a version of the pinhole camera, and was often used as a tool by artists such as Leonardo Da Vinci as a technique to create paintings.
  • The process of photography was effectually engaged in creating a permanent image from the process outlined originally by the camera obscura.

• History of Photography

  • While photography is the result of several technical discoveries, from the concept of the pinhole camera to the use of camera obscura, the history of photography really begins with the ability to create permanent images.
  • Around the year 1800, Thomas Wedgwood made the first known attempt to capture the image in a camera obscura by means of a light-sensitive substance.
  • Exposure times in the camera, although somewhat reduced, were still measured in hours.
  • Paper with a coating of silver iodide was exposed in the camera and developed into a translucent negative image.
  • In July 1888 Eastman's Kodak camera went on the market.

• Photography: Recording an Image

  • The camera (or 'camera obscura') is a dark chamber from which, as far as possible, all light is excluded except the light that forms the image.
  • The purpose of a camera - whether it is a digital or film camera - is to project light onto a surface that will capture an image.
  • Traditionally this is not a camera control, but rather the type film being used.
  • However in digital cameras, the ISO equivalency is controlled in the camera itself, as there is no real film being used.
  • Digital cameras use an electronic image sensor based on light-sensitive electronics.

• Photography in America

  • The history of photography has roots in antiquity with the discovery of the principle of the camera obscura, and the observation that some substances are visibly altered by exposure to light.
  • In the mid-1820s, Nicéphore Niépce succeeded, but several days of exposure in the camera were required and the earliest results were very crude.
  • Niépce's associate Louis Daguerre went on to develop the daguerreotype process, the first publicly announced photographic process, which required only minutes of exposure in the camera and produced clear, finely detailed results.
  • In July 1888 Eastman's Kodak camera went on the market with the slogan "You press the button, we do the rest".

• The Regression Fallacy

  • The frequency of accidents on a road fell after a speed camera was installed.
  • Therefore, the speed camera has improved road safety.
  • Speed cameras are often installed after a road incurs an exceptionally high number of accidents, and this value usually falls (regression to mean) immediately afterwards.
  • Many speed camera proponents attribute this fall in accidents to the speed camera, without observing the overall trend.

• Convergent Evolution

  • One of the most well-known examples of convergent evolution is the camera eye of cephalopods (e.g., octopus), vertebrates (e.g., mammals), and cnidaria (e.g., box jellies).
  • Their last common ancestor had at most a very simple photoreceptive spot, but a range of processes led to the progressive refinement of this structure to the advanced camera eye.
  • Vertebrates and octopi developed the camera eye independently.

• Radiation Detection

  • Scintillators can also be used in neutron and high-energy particle physics experiments, new energy resource exploration, x-ray security, nuclear cameras, computed tomography, and gas exploration.
  • Other applications of scintillators include CT scanners and gamma cameras in medical diagnostics, screens in computer monitors, and television sets.

• Consequences

  • Betty borrowed a camera from the media center.

• Physical Context

  • You may find it necessary to practice with the camera and study how eye contact will be perceived by the remote audience and adjust accordingly.
  • Appearance consciousness: A second psychological problem with videoconferencing is being on camera, with the video stream possibly even being recorded.
  • Check out how you appear by recording a sample of your speech and viewing it to adjust to being "on camera. "