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"OFF" (=
s
)
"
1
1
/
,
/
50
120
"
"
"
"
"
s
s
1
1
1
/
,
/
,
/
1000
2000
4000
Note: If the value ≤
1
/
125
"BACK LIGHT WDR>" will be switched off (compare
chapter 8.5).
8.5 Line BACK LIGHT – backlight compensation
Via this menu item, the backlight compensation
(BLC) can be switched on (= ON>) and OFF. Alter-
natively, the function WDR (Wide Dynamic Range)
can be selected. The backlight compensation serves
for purposeful brightening of objects to be monitored
in backlight which would otherwise be reproduced
too dark and poor in contrast by the brightness con-
trol. For this purpose the picture is divided into 48
zones for which brightening can be defined individ-
ually. If "ON>" was selected, press the key
the "BACK LIGHT" submenu:
** BACK LIGHT **
AREA
LEVEL
—— —+————
RETURN
To select the functions, use the keys
s
"
"
s
"
"
s
"
"
1
1
1
,
/
,
/
,
125
250
"
"
"
s
s
1
,
/
10 000
is adjusted, the function
s
to go to
SET>
and
Via the function "AREA
s
"
/
,
500
brightened can be defined. After pressing the key ,
a grid of 48 squares is laid on the camera picture.
The square in the top left corner will flash. Use the
keys
,
to select the preceding square and the
keys
,
to select the following square. By shortly
pressing the key
tation (area is brightened) and transparent repre-
sentation (not brightened) of the selected (flashing)
square. When all areas have been adjusted, return
to the "BACK LIGHT" submenu by pressing the
key
for a longer time (> 2 s).
Via the parameter "LEVEL" adjust the bright-
ening grade with the keys
the right, the brightness will be increased, by moving
to the left, the brightness will be reduced.
To return to the main menu, select the function
"RETURN" and confirm with the key .
8.5.1 WDR mode (only for ALC exposure control)
With the adjustment "WDR" (Wide Dynamic Range)
the camera is equipped with a function to obtain a
wider dynamic range. The camera takes more pic-
tures per second than the video signal requires.
From two pictures with different shutter times (adapt-
ed each to the bright and dark picture sections), the
.
signal processor will calculate a picture where the
SET>" the areas to be
, switch between grey represen-
and
. By moving to
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