Ricoh 170553, GXR, 170543 manual Tip Histogram, OverexposedUnderexposed

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Tip: Histogram

The histogram is a graph showing the distribution of pixels of different brightness in the image. Brightness is plotted on the horizontal axis, with shadows at the left and highlights at the right. The vertical axis gives the number of pixels. The histogram can be used to assess exposure and check for loss of detail in highlights and shadows without the brightness of your surroundings affecting your judgement. A histogram in which pixels are clustered on the right indicates that the image may be overexposed, while a histogram in which pixels are clustered on the left indicates that the image may be underexposed.

OverexposedUnderexposed

If the image appears to be incorrectly exposed, you may be able to use exposure compensation to correct exposure in subsequent photographs of the same subject (page 85; note that exposure compensation may be insufficient to produce the correct exposure in some cases). The histogram can also be used as a guide when adjusting contrast in photographs after shooting (page 107).

The histogram is intended as a guide only and may not be completely accurate, particularly in cases in which the flash is used or ambient lighting is poor.

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