Waterfalls and smooth silky water
I am frequently asked how to get that smooth silky water effect when photographing waterfalls. It is not difficult to do, but it does involve a few important steps to capture the silky motion of the water in your photographs. It also helps if you are photographing under the right light conditions and you are using a tripod.
I have found the “best light conditions” for photographing waterfalls are:
Overcast or cloudy days with a white sky for even diffused light without noticeable shadow
Foggy or misty weather
Near sunrise or near sunset when the sun is low in the sky
A time when the entire waterfalls is in the shade or shadow
Avoid the times when part of the waterfalls is lit with direct sun and part is in shadow