Photography basics

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Overview of aperture, shutter speed and ISO.

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Photography basics

  1. 1. Photography Basics Shutter speed, Aperture and ISO
  2. 2. Three pillars of photography • Shutter speed • Aperture • ISO Balance of all three
  3. 3. Shutter speed The shutter blocks all light from exposing the image sensor (or film) until you press the button. Then it quickly opens and closes, exposing the image sensor with a flash of light. You can control the length of time the shutter remains open by setting the shutter speed. • Longer the shutter speed = more light (brighter image) and more motion blur. • Smaller the shutter speed = less light (darker image) less motion blur
  4. 4. Shutter speed example
  5. 5. Aperture Before the light reaches the image sensor it passes through an opening called an aperture. The Aperture is like a pupil. You control the aperture by adjust the opening also called the f-stop • Smaller F-stop number = larger opening for more light (brighter image) and shallower depth of field • Larger F-stop number = smaller opening for less light (darker image) and greater depth of field.
  6. 6. Aperture
  7. 7. Aperture example
  8. 8. ISO ISO is the level of sensitivity that your camera (image sensor) to available light. The lower the number the less sensitive to light it will be. Always try to stick with your cameras base ISO level for better quality images.
  9. 9. Example

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