Fisher VCB-3574IR Security Camera User Manual


 
SETTINGS
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.
Backlight compensation setting
Use an auto-iris lens and set the EI/BLC switch to the BLC-ON
position, to engage the backlight compensation function.
Use an auto-iris lens. Set the EI/BLC switch to BLC-ON switch to the
ON position.
If using a VIDEO type auto-iris lens
The ALC volume on the lens should be turned all the way to Av
(Average).
If the backlight compensation function does not compensate
properly for the conditions, set using the LEVEL volume on the
lens.
CAUTION:
The electronic iris function and the backlight compensation function
cannot operate simultaneously.
L
E
V
E
L
LH
VR401
ON
OFF
ON
EI
BLC
L72H4/US GB 1999, 2, 4
English 11