[anovikov]

building a WCS model (pixel XY <-> ray vectors) of a camera is a solved science. Of course you can never expect it to be rectangular.

[lazide]

No kidding, that is what I was referring too. Precision for a typical doorbell camera is going to be several minutes of angle at best, which is my point.

[anovikov]

Oh well several arcminutes is excellent. Yes this is best case.