Dynamic Range
The pictures were taken in sequencefrom a roof on a winter morning. Anyone who has ever
tried to photograph a sunrise or sunset with a digital camera
should immediately recognize the problem at hand.
With a standard exposure, the sky comes in beautifully, but
foreground houses are nearly black. Using longer exposures
you can bring the houses up, but by the time they are
looking good the sky is completely blown out.
is responding to different levels of light. That information
allows a computer to connect bright areas in the scene to
the darker ones and calculate accurate fl oating point pixel
values that combine detail from each exposure.
But with all the excitement surrounding HDR imaging
and improvements in the dynamic range of video cameras,
many forget that for decades there has been another
medium available for capturing dynamic range far beyond
what a computer monitor can display or a digital camera
can capture.
That medium is fi lm.
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