Image parameters (contd.)

Picture Styles (studio comparison)

  Thumbnail 25% crop
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Contrast adjustment

Adjusting the tone setting alters the shape of the 'S curve' used to map the linear image data captured by the sensor into the correct gamma. A lower contrast setting maintains more of the original data's dynamic range but leads to a flatter looking image. A higher contrast setting stretches the grayscale (dark to light) of the image and could lead to clipping of both shadow detail and highlights. The EOS 40D provides a wide range of adjustment with nine steps from -4 to +4.

  Thumbnail Luminosity histogram
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