Warren wrote:
> This is a simple matrix metering system that compares a small spot type
of
> sensor in the middle of the photo to the surrounding area using
averaging
> type metering. If there is a difference then it will bias the exposure
> toward the single spot sensor. This obviously mades it useful for
portraits
> where the background is darker or lighter than the subject. (Someone
might
> want to correct me on whether it works both ways.)
I seem to remember from the brochure pictures that the OM40/pc
uses a very similar 2-area silicon sensor (and fresnel sub-mirror)
to that of the OM2sp/3/4.
Oddly enough, the Mju-II/Stylus Epic seems to use a similar
spot/averaged smart metering to that of the OM40/pc (with the added
option of switching into spot-only mode) so the technology isn't
entirely dead.
-Brian
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