Pinhole Imagery

Despite its antiquity and apparent simplicity, the pinhole camera can be an interesting and useful device, boasting freedom from linear distortion, infinite depth of field, and wide angular field. The pinhole camera may be optimized for best resolution, and even its low aperture is largely offset by the availability of modern light sources and fast detectors. Clear understanding of this simple optical system yields a good deal of insight into physical optics and optical instruments.