Panasonic WV-BS300 Operating Instruction page 10

• Field Setup Mode (PRESET OFF)
This mode is effective in conditions where the
important object in the scene is not located
centrally in the picture and when a bright light
source is located near the centre of the
screen.
A conventional camera cannot cope with these
situations.
However, by using the WV-BS300 in the preset
"OFF" mode, it is possible to compensate for
difficult lighting conditions. In this mode, the
picture is divided into 48 zones or mask areas.
It is possible to mask (or tell the camera to
ignore) any bright light sources in those mask
areas that might interfere with picture clarity.
For example, a strong spotlight in the back-
ground might cause the lens iris to close down
<Conventional Camera>
Night
(3) Shutter Speed (SHUTTER)
The electronic shutter speed can be selected from 1/50 second (OFF) to
1/120 - 1/10000 second.
Note:
Refer to "Shutter Speed Setting" on page 12 for detailed procedures.
OFF 1/120
1/1000
(4) Gain Control (AGC)
The gain control mode can be selected between automatic gain control
(AGC ON) and manual gain control (AGC OFF) by this menu.
Note:
Refer to "Gain Control Setting (AGC ON/OFF)" on page 12 for detailed
procedures.
(5) Synchronization (SYNC)
In the setup menu it is possible to select either the internal sync
mode (INT) or the line-lock sync mode (LL).
Additionally, this camera accepts the VD2 signal, which is the vertical
drive signal multiplexed with the composite video output signal from
a component such as the WJ-MP404 multiplex unit. The VD2 signal
allows for roll-free vertical interval switching in a sequential
switcher.Whenever VD2 is supplied to this camera, the camera
automatically switches into the VD2 sync mode.
In the submenus of the synchronization section of the setup menu,
adjustments are possible for the vertical phase adjustment for the
line-lock mode.
Day
B
1/250 1/500
1/2000 1/4000
so much that all other objects in the scene
appear dark.
back light compensation, it is possible to mask
out the spotlight and increase the rest of the
scene's brightness as shown below.
In addition to the mask area setup, the overall
video output level can be adjusted by using the
level adjustment (LEVEL) while in the preset
"OFF" mode for both the "ALC" and "ELC"
modes.
Note:
The end result of the field setup of the
mask area and level adjustment is the
generation of a feed back control signal to
the lens iris when in the "ALC" mode, or a
exposure time control signal to the CCD
image sensor when in the "ELC" mode.
<WV-BS300 Masked>
1/10000
- 7 -
With the field setup mode for
Night and Day
** SET UP **
CAMERA ID OFF *
ALC/MANUAL ALC *
SHUTTER OFF
AGC ON
SYNC INT
AUTO PAN OFF
SPECIAL *
** SET UP **
CAMERA ID OFF *
ALC/MANUAL ALC *
SHUTTER OFF
AGC ON
SYNC INT
AUTO PAN OFF
SPECIAL *
** SET UP **
CAMERA ID OFF *
ALC/MANUAL ALC *
SHUTTER OFF
AGC ON
SYNC INT
AUTO PAN OFF
SPECIAL *