Forgive me, but I am totally confused by statement number two on page 12, which states:- "The distance between the lens and the camera sensor (the flange distance) must be equal to, or greater than, the distance between the lens and the camera sensor on the original camera". Wikipedia states:- "the flange-to-film distance the lens is designed for must be greater than that of the camera body it is to be adapted to, giving room for the adaptor." Does this say the same thing? The quote from AP seems to suggest that the flange distance on the new camera must be greater or equal to the flange distance of the camera that the legacy lens was designed for, by stating "the original camera", which I took to mean the camera that the lens was originally designed for. We know that this is incorrect, as you cannot use M42 lenses on Nikon F bodies and get infinity focus for that reason. So, I am assuming that, when Matt Osborne talks of the "original camera" he must be talking about the new camera that you are hoping to fit the lens to, not the original camera that the lens was designed for. Can someone confirm this, please?