vincebagna opened this issue on Dec 09, 2009 · 48 posts
bagginsbill posted Wed, 16 December 2009 at 5:01 PM
By the way, since then I think I've guessed where the 1.4x crop factor came from. Whoever coded that may have misunderstood the definitions of field of view for 35mm film, and they may have used the diagonal measurement of a square image instead of the horizontal measurement. The diagonal of a square is the square root of 2 longer than its side. The square root of 2 is approximately 1.414. Thus - a 1.4x crop factor is applied by accident.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)