Lac> I have looked at many sites including the Chuck Westfall site for a specific
Lac> answer to this question. When using the EOS-3 and 550EX in AV mode, using
Lac> the flash for fill from what I have read the camera meters and selects a
Lac> shutter speed based on ambient light. So, the camera does not adjust the
Lac> flash output based on aperture selected? Instead it could select too slow a
Lac> shutter speed to handhold requiring you to use a tripod or manual settings,
Lac> more often while shooting flash, Instead of underexposing the ambient light
Lac> thus using the flash as the main light. Is this correct?
Yes. If you want full control use M and set shutter speed and
aperture according to your needs. The flash computes the
required amount of light. In AV the camera behaves as you
described, the flash is used as fill in.
--
Best regards,
Dieter mailto:[EMAIL PROTECTED]
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