PhotographyLesson 1 of 1 in the course Exposure

Photography: Light Capture, Historical Processes, and Visual Uses

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

Photography creates images by recording light. This lesson introduces the basic process and the key parts that turn light from a scene into a photograph.

Photography is the art, application, and practice of creating images by recording light. A camera may record light electronically with an image sensor or chemically with a light-sensitive material such as film. The word photography joins Greek roots meaning light and drawing or representation—often summarized as drawing with light.

All flashcards

Photography
The art and practice of creating images by recording light electronically or chemically.
Exposure
The period during which light reaches a camera's recording surface.
Latent image
An invisible image formed in photographic emulsion before chemical development.
Stereoscopic photography
Photography using two slightly different views to create a perception of depth.
Photojournalism
The use of photographs to tell news stories, guided by honest and impartial representation.

Quiz questions

  1. What is the key limitation of a camera obscura compared with a photographic camera?Answer: It projects an image but does not permanently preserve it.
  2. Which process describes the essential image-making method of the daguerreotype?Answer: A silver-plated surface sensitized with iodine vapor and developed with mercury vapor.
  3. What important capability did Talbot's calotype provide?Answer: It produced a translucent negative from which multiple positive prints could be made.
  4. How did Autochrome create color photographs?Answer: It used dyed potato-starch grains as a color-filter mosaic.
  5. What does light-field photography allow a photographer to do after capture?Answer: Select different focus depths using recorded information about light-ray directions.

Based on the Wikipedia article Photography, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

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