Pentax 17311, Operating Manual

Page: 103 / 280

101
S
h
o
o
ting
F
unc
tion
s
4
Choose the part of the screen to use for measuring brightness and
determining exposure. The following three methods can be selected. The
default setting is
L
(Multi-segment metering).
1
Press the 4 button in the status screen.
The control panel appears.
Press the
M
button when the status screen is not displayed.
• Turn the e-dial while holding down the
m c
button to adjust the aperture
value. (p.104)
• Set the aperture value in increments of 1/2 EV or 1/3 EV. Set in [1. EV Steps]
in the [
A
Custom Setting 1] menu. (p.105)
• The Shake Reduction function is automatically turned off during bulb
shooting.
• Use a sturdy tripod to prevent camera shake during bulb shooting.
• Bulb shooting is available when using the remote control shooting mode
(p.128). The shutter remains open as long as the shutter release button of
the optional remote control is held down.
• Noise reduction is a process to reduce noise (image roughness or
unevenness) caused by slow shutter speed. Set in [11. Slow Shutter Speed
NR] in the [
A
Custom Setting 2] menu. (p.89)
• When the sensitivity is set to [AUTO] and the shutter speed is set to
h
,
the sensitivity is set to a value equivalent to ISO 100 if the Dynamic Range is
set to [Off] and ISO 200 if set to [On].
• The upper sensitivity limit for the bulb shooting is ISO 1600.
Selecting the Metering Method
L
Multi-segment
Segments the viewfinder in 16 parts, meters each
portion and determines the appropriate exposure.
M
Center-
weighted
Measures the entire viewfinder with an emphasis on the
center and determines the exposure.
N
Spot Metering
Measures only the center of the viewfinder and
determines exposure.