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Old December 4th 04, 12:18 AM
Mark B.
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"Charles Schuler" wrote in message
...
Your equipment is a generation newer than mine but I'll offer that program
mode and Av mode will both provide what you want.


Program mode will assume the flash is the only source of light for the
subject and adjust aperture, shutter speed, and flash output accordingly.
Av will assume flash will light the subject, but adjust shutter speed for
background ambient light. So I'd say they could be very different depending
on ambient light conditions.

Mark