Dynamic Range in photography is the ratio between the measurable light intensities. In our daily lives we do not see true black or white only different degrees of them. A stop is halving or doubling the light in a photograph. Most single sensor digital cameras can capture 9-10 stops. Film can have up to 10 stops when negative and 5-6 when positive. A human eye can capture 10-14 stops which is more than most digital cameras. These pictures below show the same pictures with different with different dynamic range and it shows the difference.
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