Nikon D300 User Manual page 665

image in Figure 9-18 is recorded as pure white and is
permanently gone, or blown out.
Figure 9-18. Histogram showing overexposure (light side)
It is important that you try to center the histogram without
clipping either edge. This is not always possible, as shown in
Figure 9-18, because the light range is often too great and the
sensor or histogram window can't contain it. If you center the
histogram, your images will be better exposed. If you take a
picture and the histogram graph is shifted way left or right,
you can then retake the photograph, exposing in the direction
of the opposite light value.
If there is too much light to allow centering the histogram,
you must decide which part of the image is more important,
the light or dark values, and expose for those values.
How Does the Eye React to Light
Values?
The D300(S) camera, with its imaging sensor and glass
lenses, is only a weak imitation of our marvelously designed
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