Canon EOS REBEL T7I, Basic Instruction Manual

Page: 122 / 676

120
To blur the background or to make everything near and far look sharp,
set the Mode Dial to <
f
> (Aperture-priority AE) to adjust the depth of
field (range of acceptable focus).
* <
f
> stands for Aperture value (the size of the lens diaphragm opening).
1
Set the Mode Dial to <
f
>.
2
Set the desired aperture.

The higher the f/number, the wider
the depth of field where sharper focus
is obtained in both the foreground
and background.

Turning the <
6
> dial clockwise sets
a higher f/number (smaller aperture
opening), and turning it
counterclockwise sets a lower f/
number (larger aperture opening).
3
Take the picture.

When you focus and press the
shutter button completely, the picture
will be taken with the set aperture.
f
: Changing the Depth of Field
Sharp foreground and background
(With a high aperture f/number: f/32)
Blurred background
(With a low aperture f/number: f/5.6)