TANDBERG D14041.02 - Manual (Page 15)

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TANDBERG FieldView Device User Guide D14041.02 January 2008
4.5. Adjusting Zoom Levels
To adjust zoom levels, use the zoom buttons located above the
Navigation pad on the back of the FieldView Device.
• To adjust the zoom one step at a time, press and release the Minus (–)
button (zoom out) or the Plus (+) button (zoom in).
• To adjust zoom levels at a faster rate, press and hold the Minus or Plus
button, and release it when the zoom level is where you need it.
The minimum focusing distance changes with the zoom level. As you zoom in,
the minimum focus distance moves out. For example, if you are close to an
object and zoom in on it, the object will become out of focus if you zoom in too
far. The focus adjusts automatically when zooming unless the FieldView Device
is in Manual Focus mode. See Focusing, next.
If you need to get very close to your subject, set the zoom level to 1×
(minimum zoom) and move the FieldView Device until you reach the desired
image size. This will ensure that you achieve the best focus.
4.6. Focusing
4.6.1. Automatic Focus
The FieldView Device normally operates in automatic focus mode and will focus
on subjects centered in the viewfinder. Focus will continuously update as the
distance between the subject and the lens changes or as zoom is adjusted.
There are situations where manual control is desired to fine tune the focus,
particularly for objects not centered in the viewfinder. Manual focus control is
described in the following section.
Note that zoom and focus controls are available regardless of whether the
Viewfinder is currently displayed.
4.6.2. Manual Focus
To set focus manually, the Operator can use the Plus/Minus buttons in
combination with the Manual Focus (MF) button
Manual focus options
Switch to manual
focus and increase or
decrease manual focus
by one step.
While pressing and holding the MF button, press
and release a Plus or Minus button once. When
you release the MF button, the FieldView Device
remains in manual focus mode, locked at the
focus level you set.
Switch to manual
focus and increase or
decrease manual focus
at a standard rate. While pressing and holding the MF button, press
and hold a Plus or Minus button until you reach
the setting you want. Then release the buttons.
When you release the MF button, the FieldView
Device remains in manual focus mode, locked at
the focus level you set.
Switch from manual
focus to automatic
focus mode. Press and release MF (without pressing Plus or
Minus).
Set a temporary focus
lock. Press and hold MF (without pressing Plus or
Minus). The focus stays locked for as long as
you continue to hold the MF button. Automatic
focus mode resumes when you release it.