The main goal is to ensure that you aren’t clipping any “important” visual information, and that is achieved by keeping an eye on your histogram. Take a look at Figure 1.16. The histogram displayed on the image shows a heavy skew toward the left with almost no part of the mountain touching the right side. This is a good example of what an underexposed image histogram looks like. Now look at Figure 1.17 and compare the histogram for the image that was correctly exposed. Notice that even though there are two distinct peaks on the graph, there is an even distribution across the entire histogram.
FIGURE 1.16 This image is about three stops underexposed. Notice the histogram is skewed to the left.
FIGURE 1.17 This histogram reflects a properly exposed image.
CHAPTER 1: THE 60D TOP TEN LIST
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