Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

The Physics Professor happens to be here as a guest at my health retreat. So he is readily accessible and more than willing to help, and it was some great luck for me. 

He drew this box around the limo, and it represents Babushka Lady's camera view. 

I took a picture of it with my camera, but it was faint, so I reinforced the lines. His point is that since Babushka Lady was shooting at the limo diagonally, it changed the tilt of her picture view. The bottom line of the box represents the bottom of the picture. Obviously, it is horizontal when we look at the photo, as it is for every photo. But, look how the base of the limo is at an angle to the bottom of the picture. That's exactly what we see in the Moorman photo, and that is what he is talking about.

Obviously, the divergence is less in the photo than in the drawing. The drawing exaggerates the effect. Nevertheless, the photographer was not standing perpendicular to the street and to the limo, and that is why we see that effect. Mary Moorman was standing perpendicular.