dynamic range

Definition: Measure of spread from the highest to lowest energy levels that can be captured by an imaging or recording or reproduced by a play-back device. * E.g. a top-class scanning camera back can capture a range of 11 f/stops; a good film-scanner may be able to manage under 9 stops. * Concept of energy levels is usually converted to densities in devices such as scanners e.g. dynamic range is '0.2 - 3.0D units'.

Related Terms: HDR, luminance range

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