If you have not yet checked the links in the article, this 8-part video presentation is well worth the time to work through: http://media.panavision.com/ScreeningRoom/Screening_Room/Demystifying_Part1.html . At the end of each segment, just hit your back button to access the next one.
The presentation goes into much more detail behind points made in the article, and explains much about MTF, resolution, sharpness, lenses, dynamic range, human perception, image acquisition/processing/conversion, scaling, projection, etc. I now understand much better why there is so much difference in the overall appearance of one video program versus another, one display type versus others, how better lenses can make such a substantial difference at both the camera end and the projector, etc. Highly recommended!
