Thanks for all of the kind comments. It has certainly been a challenge.
That "thingie" that moves across camera 2 and 3 appears to be some sort of a corn bin. I have found similar looking things in farmer's fields. It looks like a hopper with four wheels. When I have time, I'll post a frame grab for all to look at.
I do know its moving......rather quickly.
Darren:
Indeed, one needs to know the distance to calculate the velocity of moving objects, and also knowing the lens distortion (if any) that might affect these measurements.
Now...would someone PLEASE send us a few tornadoes, and get us out of this horrible pattern?
:?
Tim