Graphics Programs Reference
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VI. The Zone System Applied: Exposure
Evaluation with Histograms
Utilizing Histograms in the Field for Optimal Exposures
with the Greatest Dynamic Range
Digital technology brings with it one of the most exciting and compelling
reasons for its use altogether: the instant feedback and gratii cation we get
from immediately seeing the image on the LCD screen on the back of the
camera. Although it is fun to see the image instantly, it is important not to
evaluate exposure accuracy by the display image alone. How many times did
you think you had great exposures in the i eld, and come home to realize that
the shot was not exposed properly? Due to variables in the i eld, like glares
and rel ections, it is unlikely that the preview you see in the i eld will provide
an accurate representation of how the image will look on your monitor.
So if the LCD Stinks for Exposure Evaluation is There
Another Way to Evaluate Exposure in the Field?
The histogram is, without a doubt, the greatest and most ef ective tool the
digital photographer has for evaluating exposure and monitoring highlight
and shadow information in the i eld; simultaneously, however, it might also
be the most mysterious and least understood. Utilizing the digital camera's
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