PhotoPlus The Canon Magazine – August 2019

The Canon Magazine 35

Depth of field

As your focal length increases, the

depth of field decreases, and vice versa.

At f/5.6, for instance, a wide-angle lens

will capture more of your scene and

more of it sharp, when compared to a

100mm lens at the same aperture. So,

while using a wide focal length around

10mm and narrow aperture around f/11

will keep everything sharp from the

foreground to the background for scenic

shots, the opposite is true when taking

portraits. This time, shoot at around

100mm and select an aperture around

f/4 so your subject is sharp, but

everything in front or behind your focal

point is nicely blurred so your subject

stands out in their surroundings.

narroW aPerture W ide aPerture

prime lenses

Quick tip

Working with a shallow depth of

field makes focusing accurately

difficult. When shooting

portraits, for example, you want

to make sure that the eyes are

sharp, so use single-shot AF

and ensure the focus point on

the camera is positioned over

the eyes of the subject.