Pentax 8557, 8572, 8587, 8542 Using the Shutter Release Button, Press halfway, Press fully

Using the Shutter Release Button

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

Press halfway

This refers to pressing the shutter release button gently to the first position. This locks the focus setting and exposure. The green focus frame lights on the display when the shutter release button is pressed halfway and the subject is in focus. If the subject is out of focus, the frame turns white.

Press fully

This refers to pressing the shutter release button all the way down to the fully depressed position. This takes a picture.

Not pressed	Pressed halfway	Pressed fully
	(first position)	(second position)

Poor focusing conditions

The camera may not be able to focus under the following conditions. In these cases, lock the focus on an object the same distance away as the subject (by pressing and holding 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 being reflected back

•Intricate patterns

•Fast moving objects

•When both an object in the foreground and an object in the background exist in the captured area

•Strongly reflected light or strong backlighting (bright background)

3 TakingPictures

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