On 22 Jul 2002, at 11:16, eco...@aol.com wrote: > I know this is not strictly pinhole, but I wondered if > anyone had access to the average human eye values for the > camera variables. ie Respective - film speed, shutter speed, > aperture, focus range, depth of field etc. Thanks > Ellis This question comes up from time to time in a number of photo-related groups. The best answer is that it is a meaningless question. The human visual system does so much "post processing" that what we see, and how well, bears no resemblance to the optical performance of the eyeball itself. Our visual experience is essentially wide field (vertically and horizontally), ultra high-definition, full color, moving, with infinite depth of field in almost any lighting situation. If you were looking only at the eye's performance you would get the idea that human vision is characterized by poor resolution in only a very narrow field, surrounded by terrible resolution over the wide field. The depth of field would appear to be poor in all but full sunlight and there is a blind spot in the picture!
The thing I like most about pinhole photography is that the process prevents the brain from processing everything into a "realistic" image, which gives us a whole new visual perspective of the world. Gary Nored
