When the user of a digital camera records an image, there is some presumption that when displayed, there is an accurate tonal representation. However, this is almost never the case. The paper shows how capture and tonal reproduction of an image rarely match, as well as a brief history as to why this is true. Techniques for calibrating digital cameras tonally as well as calibrating viewing devices are presented. The paper demonstrates a method of recovering camera response curves easily and with precision. Monitor calibration is demonstrated in a means that allows an accurate display of light-linear images. Ultimately, the paper shows how the proposed methods of calibration for digital cameras and display devices results in the accurate representation of images.