Pentax K20D Operating Manual page 98

96
Using the p (Bulb) Mode
This mode is useful for the long exposures required for shooting night
scenes and fireworks.
The shutter remains open as long as the shutter release button is kept
pressed.
1
Set the mode dial to p.
4
• EV compensation, Continuous shooting and Exposure Bracket are not
available in p (Bulb) mode.
• The longer the exposure time, the greater noise in the captured image.
• Turn the rear e-dial to adjust the aperture value.
• Set the aperture value in increments of 1/2 EV or 1/3 EV. Set in [2. EV Steps]
in the [A Custom Setting] menu. (p.101)
• The Shake Reduction function is automatically turned off when exposure
mode is set to p (Bulb) mode.
• Use a sturdy tripod and the cable switch CS-205 (optional) to prevent camera
shake when using p (Bulb) mode. Connect the cable switch to the cable
switch terminal (p.17).
• Bulb shooting is available when using the remote control shooting mode
(p.125). The shutter remains open as long as the shutter release button of
the optional remote control is held down.
• When the sensitivity is set to [AUTO] and exposure mode is set to p (Bulb)
mode, the sensitivity is the lowest sensitivity set in "Setting the Range of
Automatic Correction in AUTO" (p.78).
• When the exposure mode is set to p (Bulb), the upper sensitivity limit is ISO
1600.
• There is no limit on exposure time for Bulb shooting. However, we
recommend using the AC adapter D-AC50 (optional) when shooting with a
long exposure setting as the battery is used while the shutter remains open.
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