The photograph is of Colin.
For several years Colin Berry has been investigating ways by which the image on the Shroud could have been manufactured, and he has finally arrived at what he hopes is a satisfactory explanation. In many ways, though, the journey has been more valuable than the final achievement, as the variety and imagination of his experiments have enhanced our understanding of many of the characteristics of the Shroud, and demonstrated inaccuracies in long held beliefs.
Although Berry says he has hung up his test tubes for the present, several loose ends are still available for tying up. Although Ray Rogers was convinced there was a thin starch coating all over the Shroud, Heller and Adler, in 1988, didn’t find any. And if the image relates, as the STuRP team suggested, only to the material of the Shroud and not to any coating or imprinting medium, then some interaction between the xanthoproteic events on the medium and the underlying linen should be investigated.
But you must read all of it.