I think the diferences we are having here come down to a simple difference in approach. I was simply trying to answer a question relating to how a lens will act when taking a photograph, where as you seem to be more interested in swaggering around quoting text book ideals and being insulting (which is quite amusing btw ).
At some point the difference in focus position and true infinity becomes too small to measure, and people don't bother any more
Exactly, because it doesn't make any difference when you are taking the photograph. Going back the simple illustration of walking away from a camera and where you appear on the focus scale, at some point (and I dare not mention it by name) you cease to need to adjust the focus.
You can spout as much technical theory as you like but none of it will change the answer to the original question about where to focus when everything in the scene is futher away than the inf...... almost said it there. :laugh: