Wilt, a follow-up, if you please. I reshot my outside/inside frame just now. Lighting is a bit different, as the other was shot yesterday. But...
I am a bit amazed. I compared my Evaluative shots (using different AF points) to metering using SPOT and recomposing. Spot wins, quite handily. As in the post I made above (and Wilts example shows), the Evaluative trick still left me 2/3 to 1 stop underexposed on the 'inside' shot, and about 1/2 over exposed on the 'outside' portion of the frame. By spot metering the inside, using *, then taking the shot, I got a much better exposure than I did with Evaluative. Ditto Spot metering and * for the outside.
I have to rethink this metering business. And now I need a camera where I can put Spot-metering on the AF point of my choice.
George, congratulations on the journey into the achievement of photographic nirhvana!
The solution to the lack of AF zone = Metering zone capability, in anything but the 1D body, is to do your metering in Manual mode, so reframing changes nothing regarding exposure settings.