Re: Pinhole 9x12cm quest

George L Smyth (GLSmyth@ari.net)
Tue, 14 Oct 1997 07:11:41 -0400

Richard Sullivan wrote:
>
> I guess the infinite depth of filed can be explained by just applying this
> to any point inside the camera and forgetting about the image plane in a
> film plane paradigm.

The infinite depth of field works because there is no lens focusing the light
entering the box, simple as that. Without diffraction, the smaller the hole, the
sharper the image. When the light affected by diffraction becomes an appreciable
percentage of the image, degradation will be noted.

george

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