2009/1/4 Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>:
> Are you sure? I'm not. Try measuring a light in your house with your
> light meter. First from 1 meter, then from 1.4 meters, then from 2
> meters. Bet you find a 1 stop drop in each measurement.
Yes, but that's changing the light-subject distance, not the
subject-camera distance. Put a piece of paper 1 meter away from a
lamp shining onto it and take spot readings from the paper at 1, 1.4
and 2 meters. They should be the same, no? You'd use the same
aperture to photograph that piece of paper from each of those
distances with a manual flash, wouldn't you?
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