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What does ISO measure in photography?

Practice Questions

Q1
What does ISO measure in photography?
  1. The sensitivity of the camera's sensor to light
  2. The aperture size of the lens
  3. The shutter speed duration
  4. The focal length of the lens

Questions & Step-by-Step Solutions

What does ISO measure in photography?
  • Step 1: Understand that ISO is a setting on your camera.
  • Step 2: Know that ISO measures how sensitive the camera's sensor is to light.
  • Step 3: Realize that a lower ISO number means less sensitivity to light, which is good for bright conditions.
  • Step 4: Understand that a higher ISO number means more sensitivity to light, which helps in darker conditions.
  • Step 5: Remember that using a higher ISO can sometimes introduce noise (graininess) in your photos.
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