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by moving it to the left, the brightness is reduced.
GB
For returning to the main menu, select the function
RTN (return) and confirm with the middle key
8.4.2 ALC mode
WDR
LEVEL
SHUTTER
IRIS
W W/B
RTN
The camera is equipped with a function to obtain a
wide dynamic range (WDR). The camera takes
more pictures per second than the video signal re-
quires. From two pictures with different shutter times
(adapted each to the brighter and darker picture
sections), the signal processor will calculate a pic-
ture where the whites are not overmodulated and
the darker sections still show sufficient contrast.
In the ALC mode, several operating modes can be
adjusted:
1. The function WDR for maximum dynamic range
is switched on (=ON). The SHUTTER is automat-
24
** ALC **
ON
>————+— ——<
————
>——— +————<
OFF
ically controlled. "LEVEL" adjusts the reference
level for the control. The iris control for a corre-
(3).
sponding lens is also made automatically but can
be manually optimized in a certain range with the
adjustment "IRIS" [key
key
(2) close iris further].
2. The function WDR is set to automatic (= AUTO).
Brightness control is fully automatic. However,
iris control for a corresponding lens can be man-
ually optimized in a certain range with the adjust-
ment "IRIS".
3. The function WDR is switched off (= OFF). The
SHUTTER can be manually selected:
indicated value
(5): open iris further,
shutter time
100K
1
/
s
100 000
1
50K
/
s
50 000
1
30K
/
s
30 000
1
20K
/
s
20 000
1
10K
/
s
10 000
7000
1
/
s
7 000
5000
1
/
s
5 000
1
3000
/
s
3 000
1
2000
/
s
2 000
1
1500
/
s
1 500
1
1000
/
s
1 000
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