THE HISTOGRAM IS a graphic display of the amount of light striking the sensor. It’s a more modern and detailed method of determining the incoming light than the traditional light meter. The shape of the histogram shows us information about the range of brightness and how the tonal areas are related.

The traditional light meter measures light in a specific area, then indicates the average with a single number on a scale that typically ranges from -3 to +3. This simplistic system fails to convey the complex subtitles of light in many scenes. The histogram does a much better job of offering an easy-to-read analysis of both the amount ...

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