----- Original Message -----
From: "Philip willarney" <pwillarney@yahoo.com>
> If the edge is a slow fade from picture to dim picture
> to black, then it's falloff. Pinholes as such don't
> have an image coverage circle --
That is correct, the image circle is determined by how many stops at the
edges we are willing to tolerate. Those 3X or 3.5X the focal length
coverage mentioned everwhere, have no meaning whatsoever, IMO.
Guillermo
Received on Tue Nov 12 15:19:53 2002
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