Pentax Optio A20 specifications Using the Shutter Release Button, Press halfway, Press down fully

Using the Shutter Release Button

The shutter release button works in a two-step action as follows.

Press halfway

The focus and exposure are locked when the shutter release button is pressed lightly (halfway). The shutter speed and aperture settings only appear on the LCD monitor when the shutter release button is pressed halfway. The focus frame on the LCD monitor will light green when the subject is in focus while the shutter release button is pressed halfway. The frame does not appear if the subject is out of focus.

Press down fully

Press the shutter release button all the way down (fully) to take a picture. [Poor focusing conditions]

The camera may not be able to focus under the following conditions. In this case, lock the focus on an object the same distance away as the subject (by pressing the shutter release button halfway), then aim the camera at your subject and press the shutter release button fully.

•Objects that lack contrast such as a blue sky or white wall

•Dark places or objects, or conditions that prevent light from being reflected back

•Finely patterned object

•Fast moving objects

•When there is an object in the foreground and an object in the background in the same picture

•Strongly reflected light or strong backlighting (bright background)

Instant Review

The [Instant Review] default setting is 0.5 seconds. During this time, you can delete the image by pressing the Green button, selecting [Delete] when the [Delete] menu appears and pressing the OK button. (1p.121)

Setting the Instant Review Time 1p.99

2 QuickStart

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