When the shutter speed is longer than 1/2 second the water begins
to blur eventually turning to an amorphous cotton wool like appearance.
I took this image from a sand dune above the coastline at
Mimosa Rocks NP with a 120mm f2.8 lens @ f2.8 using a red filter.
The exposure was around 1 second on Agfa APX 25 film.
Focus on the eyes at f5.6-f8 when taking portraits.
Use soft reflected light when possible.
Throw background right out of focus if the portrait is about the faces. Throw it a little out of focus if the portrait is about the person and their environment
Bolivian children, 400mm lens, f5.6, 1/250 sec
This nature photograph has the following attributes :
Not every nature photograph should be photographed this way or
nature photographs would be boring. As a beginner, the above technique
is a good starting point.