Originally Posted by [URL="http://www.pprune.org/forums/member.php?u=194610
For this video, estimating the distances is difficult due to the zooming.
If I am not mistaken, rotation happens at the level of the TDZ markings next to the aiming point and lift off is at the aiming point markings, thus 1500 ft and 1000 ft before the threshhold.