There has been considerable discussion in this thread about live view and auto focus. Of course, I agree that better autofocus performance is a virtue. But as a landscape photographer, this hardly seems important at all. In my view, the use of live view and manual focus should "revolutionize" landscape photography. Maybe that is hyperbole and too strong, but live view permits the exploration of focus at nearly any point in the image. I can inspect focus with the lens stopped down, I can check depth of field. I don't have to rely on indirect focusing metrics, I turn the lens barrel and I can see my focus with the image enlarged 5x or 10x. This is the modern equivalent of the loupe and ground glass on a view camera. This also means that DOF charts are obsolete, replaced by direct inspection of the image field. Another important aspect of live view is that it permits a real-time histogram. So, the procedure is to compose, tweak the exposure with the real-time histogram, and then refine focus and check depth of field. Results show that this procedure yields more reliable and better control of both exposure and focus.