Canon EOS 6D: From Snapshots to Great Shots

Depth of Field

One of the most powerful methods you can use to make your subject stand out is to utilize depth of field. By using a large aperture, you create a very shallow depth of field, which puts the focus on your subject and blurs the background and foreground. A longer focal length lens will shrink the depth of field to a very narrow area. By choosing your aperture carefully, you can control the amount of background detail (Figure 8.1).

Figure 8.1. A large aperture and a long lens provided a shallow depth of field but still allowed for some background detail.

When you want your entire image to be in focus, use a smaller aperture to increase ...