At 13:52 06/07/2003 -0400, Matt BenDaniel wrote:
>http://starmatt.com/gallery/nature/humStretch.html
>
>Quiz: From this photo, what can be determined about the background flash?
The background flash was a single T32 set at quarter power. At that level I
think the flash duration is about 1/1,000 second. It illuminated a matte board.
There were four foreground flashes: Vivitar 283's set at 1/32 power, which
yielded about 1/20,000 second duration, almost fast enough to freeze the wing
motion. (BTW you can see the reflection of three of the flashes in the hummer's
eye.)
The forward part of the right wing was backlit by the background flash. As a
result, the motion of that wing section over 1/1,000s shows motion blur.
--
Matt BenDaniel
matt@xxxxxxxxxxxx
http://starmatt.com
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