Several years ago I experimented with different shutter speeds on water, using my digital camera. After carefully reviewing the results, I have been able to visualise (at least partially) the way moving water will be represented on film ever since.
The idea here was to hold the rock in the falls in sharp focus and use the surrounding water to to provide the contrast. I selected a shutter speed that experience had taught me would create the maximum sense of movement in the falls without actually freezing the water droplets still or creating a white mist with no detail.
I love the energy this has created.
Technical details: Linhoff Technikardan, 240mm lens, Provia 100, no filtration. Rear tilt used to control image shape.
Location: Glen Etive, Scotland