At 00:23 01.05.02, Tom Trottier wrote:
Why underexpose on auto?
Short answer: Don't underexpose on auto. If you use print film you can use
my chart as a rough distance guide and let auto do it's thing, but don't
blame me later.
Long answer: The point of this chart is to *meter*, *set manually*, and
have a *predictable outcome* (See "Suggested use...". I'm sure there are
other ways to utilize this chart, but as always, you do so at you own risk,
auto or not.)
F280 will add light to the scene, so in auto there's no simple way to
predict what the camera will decide is enough exposure, as it will depend
on how much of your subject fills the frame and how bright it is compared
to the background. Neither can you decide and set the fill-in-ratio without
first (spot)metering the subject, so generally auto is pretty useless if
absolute predictability is what you're after.
Thomas Bryhn
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