Originally posted by maxmagnum
Now, I am trying to figure out how to do this with K-x. I suspect I might have to turn AF off to begin with, use Av mode, compose the shot, focus, then point the camera to the brightest area of the sky, use AE lock, frame the shot again and shoot?
That's rather complicated

Just point your cam to where you want to meter ("brightest area of the sky" if you want to meter and lock exposure on that), lock exposure, frame and focus, shoot. Or just use M mode if you'd like to take several pictures with same exposure - point the cam to where you want to meter and press green button, now exposure is set and locked (since you are in M mode) and all you have to do is frame and focus.