Howard,
as with strobe photography, the f-stop determines the
brightness of the background (allowing more or less
anbient light to reach the film), so opening the aperture
is a good first approach.
A carefully placed second flash is probably the better idea
in your case, sounds like you need a lot of depth of field.
Lars
> In follow up to my last question about flash....what is the best way to get
> rid of the black background when doing macro work with flash. On my first
> try I used Velvia and f22 with 1/125 shutter speed and a 420 EX flash on my
> Elan 7. The insects were framed pretty tightly but still there was a good
> deal of black (indoors ina botanical conservatory).. I was thinking of using
> Provia at ISO 100 instead of Velvia and perhaps giving up some depth of field
> and shooting at f11 or 16 but am not sure how much that would help. Are
> these likely to fix the problem or is a secnd flash most likely to be the
> biggest benefit (that is what led me to the prior posts questions about
> wireless)?
>
> Howard
> [EMAIL PROTECTED]
--
Lars Michael [EMAIL PROTECTED]
87GT http://www.larsmichael.com/
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