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SETTINGS
Electronic iris function setting
Use a manual or fixed iris lens and set the lens aperture to the
shortest F stop. Set the EI/BLC switch to EI-ON position.
Note:
Please refer to the specifications for dynamic range of the electronic
iris.
CAUTION:
• The electronic iris is suitable for normal indoor use. When the EI/BLC switch is set to the
EI-ON position, do not use an auto-iris lens.
• If used under fluorescent light, the image may flicker. In such a case, change to
incandescent lighting or set the EI/BLC switch to the OFF position and use an auto-iris
lens.
• When shooting bright subjects, pay attention to the light angle in order to avoid or
minimize the smear phenomenon effect.
When using an auto-iris lens (for indoor/outdoor use)
Set the EI/BLC switch to the OFF position.
CAUTION:
If conditions are outside the electronic iris operation range or more than the maximum
illumination, it will cause saturation of the CCD. In that case, use a manual iris lens.
Lens iris adjustment
If using a DC type auto-iris lens, you will need to set the LEVEL
(VR401) volume when shooting in the conditions described below.
L (counterclockwise): To decrease the contrast
H (clockwise): To increase the contrast
• If shooting simultaneously in a dark room and through a bright
window.
• If the subject background is extremely bright or dark.
• If the brightness of the picture on the monitor is not correct.
ON
OFF
ON
BLC
L
E
V
E
L
DC
VIDEO
A. I.
LENS
LH
VR401
EI
E. S.
ON
123
ON
OFF
ON
EI
BLC
L
E
V
E
L
LH
VR401
L72K2/US2 GB 1998, 2, 24
10 English