This charts show 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.
Download your free cheat sheet to help you get off AUTO and start getting more creative photos with your Digital Camera. IT shows you how you can control Depth of Field. It shows the best Aperture for Portraits and the best Aperture for Landscape photos. It also looks at another key factor in controlling Depth of Field: Focusing Distance.
What is maximum aperture? It's a question we often hear from new photographers who are getting to grips with their lenses or trying to understand depth of field. In this guide we explain what it means to set the maximum aperture, which lenses go widest and what you actually gain in terms of your images.