There certainly were a lot of well timed and framed shots of that plane impact from carefully composed camera angles; but the same can be said of much of the photography on 9/11. A friend with long experience in architectural photography, and who worked professionally on the WTC at one time, commented that he would have had to look for weeks or months to find the best spots to shoot from to get such well-composed shots, for example the view of both towers from the east with the Woolworth building in the foreground:
www.plaguepuppy.net/public_html/collapse%20update/wtc-2.jpg

It was a rock-solid tripod mounted camera that caught both collapses.

www.plaguepuppy.net/public_html/collapse%20update/--=Close-up%20of%20south%20tower%20collapse.mpg

www.plaguepuppy.net/public_html/video%20archive/Woolworth_1.mpg

Another remarkable angle of the flt. 175 crash was taken by a camera sitting on the sidewalk next to someone at a cafe table.
home.comcast.net/~jeffrey.king2/NVE00001.jpg

The camera of course happened to be left on and happened to be pointing up at the south tower right where the plane happened to hit (don't you always leave your cameras facing straight up on the ground with the lens cap off?), another real coup of coincidence.

www.plaguepuppy.net/public_html/video%20archive/Evan%20Fairbank%20interview,%20WTC-2%20plane%20crash%20footage%20.avi

home.comcast.net/~jeffrey.king2/wsb/html/view.cgi-home.html-.html