Excellent Posting by John Fraser. I highly recommend it.
To date, nobody has been able to produce an image that has all of the properties of the image on the Shroud. This is even with the assistance of modern technology. The image was not painted, as peer-reviewed studies have shown that there are no dyes or pigments on the Shroud. The image itself is only on the surface of the Shroud and doesn’t penetrate the cloth. In fact, the image itself has been measured to between 200 and 800 nanometers in thickness. That’s about 1/100th of the thickness of a human hair and thinner than most bacteria.
Read the entire posting: Journal of a Missionary: Evidence for the Resurrection or pigment of someone’s imagination?