I suspect it might be the low camera angle, but I certainly see the distortion in the "normal image." Try to shoot a more controlled test. Shot the cover of a magazine or something similar. Line the camera up so the optical axis is perpendicular to the subject. Shoot it both ways and post the results.

I tried to do that originally, but I wanted to keep the focal length the same. Ill do that as well.

stephen

By doing that test, I found no distortion. intersting enough.

I suspected as much. The change is a result of the change in perspective (low camera angle vs. normal camera angle). When the camera is low and the subject (your head) is high, this effect becomes noticeable to the eye. If you place your subject near the corners you'll also get an odd perspective that the eye will find unusual.