The Closure of Photography
While musing several years ago on these issues of the mathematically finite precision of the digital image, I happened upon the idea of the Pixellator Camera, a simple box camera using a projection screen and pixellation grid immediately in front of the film, which transcribes the indeterminate complexity of an analog projected image into a grid of pixel squares of varying degrees of grayness. The lens for this camera is a large pinhole, approximate in size to the pitch of the pixel grid. Silver gelatin paper negatives were employed in the creation of the self-portrait accompanying this article.
Details of one pixel grid cell: