On Mon, May 17, 2010 at 1:31 PM, Larry Colen <[email protected]> wrote:

> Today, it's not so simple.  Pixel densities on the sensors probably aren't
> quite down to the wavelength of light, but I've read arguments that a lot of
> them actually exceed the theoretical maximum possible for a lens to resolve.

There can be benefits to spatial oversampling (such as resistance to
aliasing, without needing a strong antialiasing filter).  See for
example:

http://www.microsoft.com/whdc/archive/ovrsamp.mspx

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