Pentax Optio A20 - Manual (Page 68)

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You can take pictures of dark scenes, such as nightscapes, with the appropriate
settings.
1
Press the four-way controller (3) in Capture mode.
The Mode Palette appears.
2
Use the four-way controller
(2345) to select
A (Night Scene
mode).
3
Press the OK button.
4
Press the shutter release button
halfway.
The focus frame on the LCD monitor will light green when the camera
is in focus.
5
Press the shutter release button fully.
The picture is taken.
Taking Pictures of Dark Scenes
(Night Scene Mode)
Total recording time will be longer when the picture is taken at
slower shutter speed (approximately 1/4 second or slower),
because the noise reduction function is activated to reduce noise.
The shutter speed is slower when taking pictures of dark scenes.
To prevent camera shake, shoot using the shake reduction function,
or set Shake Reduction to Off in the [
A Rec.Mode] menu and
secure the camera on a tripod or other stable surface. (1p.51)
Shutter release button
Four-way controller
OK button
Night Scene
OK MENU OK Cancel