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11Before You Begin
Parts of the Camera
Histograms
Histograms
Histograms show the distribution of tones in the image. Brightness is shown by the
horizontal axis, the number of pixels by the vertical axis.
Pixel brightness
Shadows Highlights
pixels
No. of
Optimal exposure: Pixels are distributed in an even curve
throughout the tone range.
Overexposed: Pixels are clustered at the right side of the graph.
Underexposed: Pixels are clustered at the left side of the graph.