Changing The Depth Of Field (Av Mode) - Canon EOS 250D Advanced User's Manual

Changing the Depth of Field
(Av Mode)
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).
Blurred background
(With a low aperture f/number: f/5.6)
Sharp foreground and background
(With a high aperture f/number: f/32)
1
Set the Mode Dial to <f>.
2
Set the desired aperture.
The higher the f/number, the wider the depth
z
of field where sharper focus is obtained in
both the foreground and background.
Turning the <6> dial clockwise sets a
z
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
z
button completely, the picture will be
taken with the set aperture.
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