On Mon, 10 Sep 2001, Rob Brigham wrote:
> I thought this was the definition of passive - measuring focus through
> the lens? Surely the more light coming through the lens the easier
> the system works. Hence AF often does not work above F8 etc...
This is true for SLR's, but not for point-and-shoots. Passive AF simply
means that the AF system looks for contrast to determine focus, and p&s's
do this via the little sensors that are usually above the lens.
chris
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