For this exercise I choose several different shots in different lighting conditions and used shutter speed for the indication of the dynamic range within each scene. I set the camera to spot and used an Aperture of approx F4 for all the shots.
This shot was taken with a shutter speed of 1/400. When spot metered the contrasting areas were: sky 1/200, far ground 1/125 and the darker near ground was 1/60. This gave a scene dynamic range of 5 stops.
This shot was almost exactly the same taken with a shutter speed of 1/400. When spot metered the contrasting areas were: sky 1/200, far ground 1/125 and the darker near ground was 1/40. This gave a scene dynamic range of 6 stops.
Once again this shot was the same taken with a shutter speed of 1/400. When spot metered the contrasting areas were: sky 1/200, tree 1/125 and the darker near ground was 1/40. This gave a scene dynamic range of 6 stops.
This was a much brighter scene but the auto setting still took the shot at 1/400 with f3.5 aperture setting. When spot metered the brighter parts of the shot were 1/200 and the darkest 1/60.
The final shot was an attempt at a reasonably flat shot even so the sky still came in at 1/200 and the foreground was 1/80. The shot was taken at 1/400.
Overall despite the similar conditions the shots all came out with a similar dynamic range from a maximum of 1/400 down to a lowest of 1/40. This indicates a dynamic range of 10 stops. For most shots the scene dynamic range was more like 6-8 stops.
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