Fanti’s method dated fibres from the Shroud to 300 BC–400 AD.Of course, there are critics who argue that Fanti’s methods are unreliable.In 1987 the Shroud was subjected to carbon-14 dating technology which dated it to the 13th century.
He then proceeded to produce a Shroud-like image on a piece of linen using his theoretical process.
However, the imaging expert Barrie Schwortz, not himself a Christian, has challenged Allen’s work, which he says only accounts for some of the Shroud’s properties.
A different sort of dating test was conducted by Giulio Fanti of Padua University in 2013.
This technology uses infra-red light and spectroscopy to measure the radiation intensity through wavelengths, and from these measurements a date can be calculated.
When he developed the negative he noticed that it showed a positive image of a human face.
He concluded that the image itself was therefore, in effect, a photographic negative.
There is now a mountain of evidence about the Shroud, but too many dismiss the possibility of the Shroud’s authenticity based on the Carbon-14 dating alone.
However, a good detective does not rely on one piece of evidence. Here are the pieces of evidence which I find compelling. It is not a stain, nor is it painted on the Shroud.
Not only can scientists and historians not reproduce the image using medieval technologies, they can’t reproduce it with modern technology.