5-12
DNW-7/90/90WS
5-16. Automatic Iris Adjustment
Preparation
.
On the setting menu, set as follows.
PAGE
: LEVEL 7
ITEM
: TEST OUT
→
ENC
.
OUTPUT/DCC switch (inside panel)
→
CAM/ON
.
Shoot a gray-scale chart in the full underscan’s picture
frame.
.
Lens IRIS
→
AUTO
Adjustment procedure
Test point : TEST OUT connector
1.
On the setting menu, adjust as follows.
PAGE
: LEVEL 9
ITEM
: IRIS MODE
Spec.
: Set the automatic iris operation mode
depending on the application.
Automatic iris operation mode setting can
be done from the average level to peak-to-
peak level of the video signal.
IRIS MODE = MIN
→
peak-to-peak level
IRIS MODE = MAX
→
average level
2.
On the setting menu, adjust as follows.
PAGE
: LEVEL 9
ITEM
: IRIS SET
Spec.
: A = 100
±
2 IRE (NTSC)
A = 700
±
14 mV (PAL)
3.
On the setting menu, set as follows.
PAGE
: LEVEL 9
ITEM
: IRIS WEIGHT
→
0 (MIN)
4.
Shoot a avoid working area of auto iris in the white
window chart.
5-16. Automatic Iris Adjustment
A
5.
On the setting menu, adjust as follows.
PAGE
: LEVEL 9
ITEM
: IRIS WEIGHT
Spec.
: Increment the IRIS WEIGHT value until
the lens iris is open.
6.
On the setting menu, adjust as follows.
PAGE
: LEVEL 9
ITEM
: IRIS SPEED (Factory setting : 0)
Spec.
: Set to the desired operation speed of auto
iris.
7.
On the setting menu, set as follows.
PAGE
: LEVEL 9
ITEM
: CLIP HIGH LIGHT
→
ON or OFF
Spec.
: Set to the desired position.
