Pattie Anderson wrote:
> Apologies for asking a basic questions, but how does Canon accomplish
> exposure compensation? For example, if I am shoot with my Rebel 2000 set
on
> TV at 1/250 in lighting which selects the max aperture for the lens, and
> then I turn up the exposure compensation by one-half to one stop, what
does
> the camera do? The aperture can't open any bigger, the film won't
magically
> become any faster. Does it just slow down the shutter speed to achieve
the
> equivalent of another stop?
Pattie,
I don't have a Rebel, but on both the 50E (Elan II) and 3 in TV mode the
aperture readout would blink, and in AV mode the shutter speed would blink,
to indicate either under or over exposure. We then have to adjust shutter
speed or aperture to suit. There is no automatic adjustment.
After all, it might be a deliberate under/over exposure. e.g. in TV we might
set reciprocal of lens focal length for shutter speed in order to eliminate
camera shake, and then hope that the exposure will be adequate. Especially
if shooting negatives.
Cheers
Keith
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