The Variation of Acceptability of. Colour Prints with Spectral Sensitivities of Colour Negative Film and Colour Temperature of the Exposing Source

Abstract

AbstractTwo daylight-balanced colour negative films, one professional and one amateur product, have been exposed to a standard subject using approximately Planckian light sources with a wide range of colour temperatures. Prints have been made to achieve a standard grey reproduction from each negative and have also been prepared using a commercial automatic printer calibrated with the negative, in each set, exposed using professional electronic flash. Subjective investigations of print acceptability are used to investigate the influence of the different spectral sensitivity distributions of the two negative films. Print acceptability is also related to a Colour Reproduction Index calculated from the standard subject, using the Hunt colour appearance model. Conclusions are drawn concerning the applicability of different subjective techniques in determining print acceptability, the effect of negative sensitivities and the applicability of the Hunt colour appearance model to problems of print acceptability.