Here is an interview of Mary Moorman from 1963.
In it, she said that she took her picture the same instant that the President was hit, and it does show in her picture. She said that she took her picture simultaneous with the first shot, and that there were more shots after she took her picture. It is frequently stated that the Moorman photo was taken at Z315 which was after the last shot. If that's true, how could it be Mary's picture when she stated that she took her photo at the time of the first shot?
In this interview, Mary said that she stepped out in the street to take her picture.
Jean Hill stated that at the moment Mary took her picture that they could see JFK's face. Obviously, we don't see JFK's face in the Moorman photo.