----- Original Message ----- From: "Philip willarney" <pwillar...@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