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Questions and Answers
What is the primary function of a lens in photography?
What is the primary function of a lens in photography?
- To store images in a digital file
- To create a chemical reaction with the light-sensitive material
- To focus the light reflected from objects into a real image on the light-sensitive surface inside a camera (correct)
- To generate an electrical charge at each pixel
What is the purpose of a photographic emulsion?
What is the purpose of a photographic emulsion?
- To create an invisible latent image (correct)
- To electronically process images
- To chemically develop visible images
- To store images in a digital file
How is an image stored in a digital image file?
How is an image stored in a digital image file?
- By using a lens to focus the light
- Through a chemical reaction with the light-sensitive material
- By converting the light into a digital format
- Each pixel produces an electrical charge which is electronically processed and stored (correct)
In addition to art and film, where else is photography employed?
In addition to art and film, where else is photography employed?
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What are the two primary methods of recording light in photography?
What are the two primary methods of recording light in photography?
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Study Notes
Photography Fundamentals
- The primary function of a lens in photography is to converge light rays to form an image on a light-sensitive surface.
Photographic Emulsion
- The purpose of a photographic emulsion is to capture and record light and color information.
Digital Image File
- In a digital image file, an image is stored as a collection of pixel values, each representing the color and intensity of light at a specific point in the image.
Applications of Photography
- Besides art and film, photography is employed in various fields, including:
- Science and research
- Journalism and documentation
- Advertising and marketing
- Surveillance and forensic analysis
Recording Light in Photography
- The two primary methods of recording light in photography are:
- Chemical recording (film-based photography)
- Digital recording (using image sensors)
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