In this tutorial, we learn how to use fill flash to get blue skies. If you take a picture of someone in front of a blue sky, they will most likely have shadows on their face, making the sky look good and them look bad. If you change your flash, the sky will look pure white and the person will look good. To change this, put a flash onto the camera, then use the exposure compensation to -1. Then, adjust your flash exposure to 2 2/3 and take the picture of the subject again. Now, you will have a great shot of the person and the beautiful blue sky behind them.