1: Understanding the terminology used for the digital camera
- Page ID
- 151071
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- 1.2: What is a ISO?
- The meaning of ISO (International Standard Organization) is how sensitive the image sensor is to the amount of light present. The sensitivity is reacting speed by light. If the value of ISO is high, you can take a picture without a flash even if the amount of light is low. However, a noise will occur on a photo if using a high ISO setting because higher gain, more noise. You can see the difference in the value of ISO using same shutter speed and aperture in following pictures.