Pentax *ist Operating Manual page 83

4
Turn the select dial to
change the aperture value
while holding down the AV
button
5
Confirm the shutter speed
and aperture value in the
viewfinder or on the LCD
panel.
If the dot is in the center of
the bar, it indicates correct
exposure.
✍
MEMO
• When using an F or FA lens, set the lens
aperture ring to the
holding down the aperture-A lock button
on the lens.
About the bar graph
If the dots are on the minus side
of the bar graph, it indicates under
exposure. If they are in the plus side,
it indicates over exposure.
If the exposure setting exceeds ± 2
EV, or blinks.
.
position while
+1 EV over exposure
81