For our first assignment, we were asked to find four images, two based off shutter speed and two off of depth of field (DoF), and explain how we know that's what they are.
This photo uses a very, very shallow DoF. I know this because, the bugs eyes are extremely in focus and the background has no texture to it, it's a flat green.
So this picture is using two Influences, Shutter speed, and DoF. A fast shutter speed and shallow DoF. I know this because, the high shutter speed allows the sparks to be caught mid strike from the lighter, and the finger is able to be caught so in focus with the lighter, because of the DoF.
This picture uses the opposite Influences than the one above because it uses a slow shutter speed and wide DoF. I know this because, the shot is very wide and all in focus. I know that this photo uses a slow shutter speed, because the water looks very soft as it moves over the sturdy rocks.