Fill In Flash experiment

fill in flash takes away the shadow in a certain picture wether good shadow or bad. if the backround that you have in youe picture is way to bright and you feel like you need to see your self better the hook your self up with fill in flash. The only time (except whenever you want to use flash) is when the backround seems to be to light and its making your person look darker and you cant see them. In the photo below there is me and im dark not to dark to see but dark so i need more light go to the picture below and BAM! im lighter flash is what this is good for.