What is Camera: Definition and 304 Discussions

A camera is an optical instrument that captures a visual image. At their most basic, cameras are sealed boxes (the camera body) with a small hole (the aperture) that allows light in to capture an image on a light-sensitive surface (usually photographic film or a digital sensor). Cameras have various mechanisms to control how the light falls onto the light-sensitive surface. Lenses focus the light entering the camera, the size of the aperture can be widened or narrowed to let more or less light into the camera, and a shutter mechanism determines the amount of time the photo-sensitive surface is exposed to the light.
The still image camera is the main instrument in the art of photography and captured images may be reproduced later as a part of the process of photography, digital imaging, photographic printing. The similar artistic fields in the moving image camera domain are film, videography, and cinematography.
The word camera comes from camera obscura, which means "dark chamber" and is the Latin name of the original device for projecting an image of external reality onto a flat surface. The modern photographic camera evolved from the camera obscura. The functioning of the camera is very similar to the functioning of the human eye. The first permanent photograph was made in 1825 by Joseph Nicéphore Niépce.

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  1. W

    Calculating Camera Lens Diameter with a Ruler

    Hello guys, I was wondering if you could guess or even calculate the diameter of a camera lens with a picture of a ruler.
  2. S

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  3. Yadama

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  4. Choisai

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  5. C

    Camera Flash Pop Sound: What Causes It?

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  6. M

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  7. gfd43tg

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  8. Andy Resnick

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  9. Z

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  10. G

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  11. J

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  12. I

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  13. Tesladude

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  14. G

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  15. A

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  16. B

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  17. J

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  18. L

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  19. L

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  20. L

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  21. P

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  22. I

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  23. M

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  24. C

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  25. zoobyshoe

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  26. B

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  27. S

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  28. T

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  29. C

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  30. K

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  31. C

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  32. Z

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  33. C

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  34. A

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  35. B

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  36. L

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  37. X

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  38. F

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  39. P

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  40. I

    Camera projection errors measuring length

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  41. mesa

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  42. D

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  43. M

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  44. Y

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  45. F

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  46. B

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  47. N

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  48. F

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  49. P

    What chemical solution to use for cleaning digital camera sensors?

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  50. Andre

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    Although this is not primary about photography but more about the story with the grizzly bear, these are incredible pictures to enjoy. Compared to the tripod, it looks like a playful adolescent but maybe not a good idea to go find out.
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