Waterfalls can be calming to photograph, but getting the shot just the way you’d like can be difficult. That’s why there are various tips and tricks that can help you capture a waterfall just the way you’d like.
First step: use a tripod. This will keep your camera stable when you are trying to capture the shot
Second step: use the lowest ISO. Lowing the camera ISO to the smallest number not only increases image quality, but also decreases the shutter speed. For example, decreasing camera ISO from ISO 800 to 100 on a Canon DSLR decreases the shutter speed by three full stops, so if you were shooting at 1/200th of a second, you would end up with a shutter speed to 1/25th of a second.
Third Step: Lower the shutter speed. This will make the water look smooth and flow gracefully in the shot.
Fourth step: change the aperture to a higher number. This decreases the amount of light passing through the lens.