ELEVEN Histograms
BEFORE the digital revolution, when I was shooting 120 roll transparency film, you were never entirely sure of how your images might look until you got the roll back from the lab. You did, of course, calibrate your camera’s meter to ensure that your exposures were consistent, but during processing, there could be so many variables that it was always a relief when you set them on the light box and saw that all was well. The digital revolution has brought many advantages to photography and being able to preview your images in advance is the biggest benefit of all for any photographer.
Today the celluloid roll has been replaced with the digital sensor and a two-dimensional graph called a histogram. Understanding histograms ...
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