Spring time around here has some of the most severe weather: tornadoes, hail, and high winds. Daytime heating against cold fronts really churns up the atmosphere. Today was pretty windy. The maximum wind gusts were 30+ miles per hour.
So I tried out a photographic experiment. Get a long exposure time and try and capture some trees in motion. I set the f/stop as small as possible at f/22. And set the ISO low as possible at 100. If I framed the shot as mostly tree filled, then I could meter the scene at anywhere from 1/2 a second to 2 seconds.
Do these trees seem in motion? Or, are they acting more like they are possessed by an evil spirit?
It turned out to be a fun experiment. Since the last picture contained sky, I had to use an EV +2.0 to get the tree metered correctly. It also makes me realize the need for even lower ISO values. My next camera will have an ISO of 50.