I agree.
You mean +1? Why don't you say so!?
if i remember correctly, an angled light source hitting a half circle projects an ellipse on a flat surface at right angles to the half circle like is shown in the picture.
Indeed. And it's also a cool photo :-)
Nice lines and shapes Chuck.Dare I suggest a square crop losing the right edge? I know the rail then exits the frame but I think everything becomes more taut like that. But I may well be wrong