This chart shows the effect of aperture on the size of the starbursts. As you can see, the smaller the aperture, the more emphasized the starburst. The same concepts apply during the daytime as they do during the night time.
Tip on Selective Focus… One of the best techniques in photography is to use a wide aperture to throw the background out of focus, while shooting portraits, which is also called as selective focus. The idea is to focus on the subject’s eyes, select a wi