Pentax OPTIO VS20 Operating Manual page 68

Pantex
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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.
3
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 there is an object in the foreground and an object in the background in
the captured area
• Strongly reflected light or strong backlighting (bright background)
Instant Review and Blink Detection
The image appears on the display immediately after it is captured (Instant
Review). If the camera detects that the subject's eyes are closed while
the Face Detection function (p.69) is activated, the message [Closed
eyes have been detected] appears for 3 seconds (Blink Detection).
• When the Face Detection function does not work, Blink Detection also
does not function. Even if the subjects' faces are detected, Blink
Detection may not function depending on the condition of the detected
faces.
• You can also disable the Blink Detection function (p.117).
66
Not pressed
Pressed halfway
(first position)
Pressed fully
(second position)

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