This is a picture of a wide lens, as you can see its bases diameter is much smaller then the top. This is to maximise the amount of light being able to go through into the shot to give a certain vibe or depth to a character. The presence of a shaddow and the length of it determines how spookey or playful an object is. For example, when walking home at night scenes are in movies. They commonly have very long shaddows to show no one else is around.