Pentax K20D - Manual (Page 90)

89
Shoot
ing Funct
ions
4
Set aperture for controlling the depth of field. The depth of field is deeper
and the front and back of the focused object is clear when aperture is set
to a large value. The depth of field is shallower and the front and back of
the focused object is blurred when aperture is set to a small value.
Shutter speed is automatically set to appropriate exposure depending on
the aperture value.
1
Effect of Aperture and Shutter Speed (p.76)
1
Set the mode dial to c.
2
Turn the rear e-dial and adjust
the aperture value.
The shutter speed and aperture value
are displayed in the viewfinder and on
the LCD panel.
Using the c (Aperture Priority) Mode