Justin F. Knotzke wrote:

quote who= Alan Browne /:

Justin F. Knotzke wrote:


for the background, close the aperture by 1-2 stops and increase flash by 1.5
stops. I'll probably darken out some buildings and backgrounds but my subjects
should come out better and not look like Casper's cousins.

If you increase the flash you will whiten them out and kill any
color they are wearing... esp. on slide film.


But wouldn't the descreased exposure compensate for that?


As McLeod pointed out, you're really making a double exposure.
One for metered natural light, one for the flash. By setting the
aperture smaller you're choking the natural light, but the flash
system will _automatically_ increase the duration of the flash
for the amount of light coming back from the subject through the
smaller aperture.... (eg: it will stay on longer) and you'll over
expose the subject. (Again: you're #13 subject is well exposed).

You have to think of both exposures seperately and then find
where the aperture works for both exposures.


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