As usual, I always read Bob Newmans technical articles with great interest. After reading this week's article on information theory I arrived at the the conclusion that what Bob as explained is a similar principal to what most cameras use to produce out of camera jpegs that are well . For example fujifilm in camera DR settings protect highlights and then apply a curve to the shadows similar to the one shown in Bob's article. Have I understood the article correctly or am I missing the point ( as I very often do ! ). Cheers Ian.