So let me get this straight . . . This image was created by a forger from the Middle Ages who was astute enough to include anatomically correct details about: 1) the placement of nails in the wrists instead of the palms, and 2) the results of reflexive actions in the thumbs caused by severed nerves in the wrists -- but wasn't smart enough to make both sides of the image the same size???
"There are features of the image, and the proportions of the man on the Shroud, that are hard to equate with it being created by contact with a real body: The man is impossibly tall, being 6ft 8in (2.03m). This may be explained if, as some researchers believe, the image was made with a projected (photographic) image - which of course may be any height. The head is disproportionately small for the body, the face unnaturally narrow and the forehead foreshortened. The front and back images, in particular of the head, do not match up precisely, and the back image is around 2 inches (5cm) longer than the front." http://www.pharo.com/history/turin_shroud/articles/mhts_05_authenticity.asp