His first posting in very intriguing. I understand what John is saying because he is quite clear. On the other hand I have no idea what the answer is to his big question in the middle paragraph below.
Why this may be important is that to the extent the formation process operated non-orthogonally, the image on the Shroud would show some distortions. This may be one reason why there is such a variance in claimed measurements. The simple version of the process would be the image projected through a taut and therefore perpendicular Shroud. To the extent the Shroud was not perfectly flat, the image would be distorted. It is likely that Shroud image contained both orthogonal and non-orthogonal properties and that is what Adler is writing.
Now my question is this. Can we determine what part of the image is orthogonal (transmitted at a 90 degree angle to the Shroud) and what was non-orthogonal: (striking the Shroud at an oblique angle)? And, can we determine that angle and correct the image?
By the way, I am not saying that image was created by a laser. I am saying that the image formation process acted similar to a laser.