Фотография /english/ - реферат по прочим предметам

 

Тезисы:

  • Light is the essential ingredient in photography.
  • Intense exposure causes many particles to form, while weak exposure causes few to form.
  • Photography, then, is based on chemical and physical principles.
  • The sensitivity of silver halides to light is the primary chemical principle.
  • The spectrum comprises the full range of color tones.
  • To the eye, the longest wavelengths register as red, the shortest as blue.
  • Photographic films vary in the way they react to different wavelengths of visible light.
  • Thus, most films now used by amateur and professional photographers are panchromatic.
  • Two additional varieties of black-and-white film-process and chromogenic-have their special uses.
  • Chromogenic film produces dye images rather than silver images on the negative.
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