ISO Speed

ISO speed shows how sensitive the image sensor is to the amount of light present. The higher the ISO, the more sensitive is the image sensor.

The ISO is represented by numbers:

Each number represents two times the sensitivity than the previous one. Higher ISO settings are very useful in low light situations, but the disadvantage of noise appears. The higher the ISO, the higher the noise levels you get.

Shutter Speed 15 | Aperture Value 2 | ISO Speed 50

Shutter Speed 15 | Aperture Value 2 | ISO Speed 100

Shutter Speed 15 | Aperture Value 2 | ISO Speed 200

ISO 50 Noise:	ISO 100 Noise:	ISO 200 Noise:

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published: January/20/2006