I would like to apologize again for my sloppiness yesterday. I really, really hate it when people present their assumptions as facts, so I should bloody well not do it myself. I could play semantic games, but for all intents and purposes, the term "correct" implies precision, which I did not deliver.

The formula for computing the field of view (actually the angle of view, but Lux is going with the common misnomer) that I posted is correct, but the constant 12 in it was just a guess. I should have made that clear.

-- I'm not mad at you, just Westphalian.