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Mastering the Olympus OM-D E-M1 by Darrell Young

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ISO Sensitivity

The ISO function changes the camera’s sensitivity to light. The higher the ISO, the greater the sensitivity, and vice versa. Higher ISO sensitivities can add grainy digital noise to the darker areas of your image; therefore, keep the ISO as low as possible for the current lighting conditions.

In figure 2.2P, the ISO sensitivity position is highlighted on the right. You will see a range of ISO sensitivity values at the bottom of the screen. Use the Arrow pad keys to scroll left or right and select an ISO sensitivity value.

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Figure 2.2P: Choosing an ISO sensitivity

In figure 2.2P I chose ISO 200. The camera recommends ISO 200 as a ...

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