Sensitometry of a digital camera

At the time of writing there is no standard method for characterizing digital cameras, but useful results can be obtained by the adaptation of sensitometric methods developed for the examination of silver-based photographic systems. The light-sensitive element of a digital camera, usually a charge coupled device (CCD), unlike a photographic film, is not something that can be taken away and examined. Any investigation of its sensito-metric properties has to be carried out in situ, within the...