After several miles of downhill hiking, I arrived at one of the falls along the Cedar Run Circuit. By this time of the day, the clouds had begun to build so the lighting was pretty low. I could get an exposure of 1.3 seconds without a neutral density filter to blur the water. Even so, I attached the filter just to see what kind of difference it might make. With the filter in front of the lens the exposure jumped to 13 seconds. Although the 1.3 second exposure did just fine, the 13 second exposure was clearly better. Three shots with a 1 ev. spacing produced the HDRi.