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How to read the Histogram. A histogram is a graphical representation of the pixels exposed in your image. The left side of the graph represents the blacks or shadows, the right side represents the highlights or bright areas and the middle section is mid-tones (middle or 18% grey).
1.800.362.3860 www.good-lite.com 1.888.362.2576 Fax  ment of near vision luminance level is usually at acceptable levels because the test is held tilted to be perpendicular to the line of sight of the child.