And how would then control over or under exposure of more then 3 stops?

This also makes manually bracketing for HDR difficult if not impossible.

One not only uses the light meter but one should also check for blown highlights and the histogram spread to get the best possible exposure with the greatest dynamic range an minimum of blown highlights.

The ability to see blown highlights and the dynamic range recorded is only possible in digital since the image is processed and analyzed within the camera and not after development in a darkroom.

George
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