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VIVOTEK
20 - User's Manual
Operation Procedure:
1. Press the Snapshot Recording button,
e.g., when a car is passing the field
of view. A short, 2.5 seconds of video
recording will be available (including 1
second of pre-recording and another
second of post-recording).
2. The recording takes place on Stream 1
with a focusing result calculated from the
full of the current field of view.
3. The Snapshot Focus comes with an
embedded Quick time player. Users can
review the current focusing results on a
viewing window. Users can also use the
left arrow key on their keyboard to go
through the recording in a frame-by-frame
manner (after the video is played once).
In this way, an installer can immediately
examine whether the focus is optimal
when a fast going car is captured by
video. If not, he can tune the focus
again and review the imaging result until
satisfied.
4. Users can also download the short
recording clip to a PC. Note that if the
Snapshot Focus page is refreshed or the
web session is closed, the recording will
be erased.
Note that you can use the arrow buttons
on the sides of the Focus tuning bar to
find the best focus.
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