Originally Posted by Doremus Scudder
Usually you are spot-on with your advice, but I think you overlooked that when you take an incident meter reading from within the shady part of your picture, then the meter already recommends the correct placement for the shadows in that part of the scene. You don't open up from the calculator dial.
For a moment you pretend that you are planning a picture of a smaller evenly-lit landscape. You set exposure based on that less complex, dimmer lighting. Then you actually take the picture of the larger scene with its wider subject luminance range.