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About the operation of the AVC function
The following section describes about the AVC function, and the parameter setting value in the ENGINEER MENU PAGE1
AVC SETUP item.
When the AVC function is operated (MENU PAGE3 AVC SELECT ON), the AVC function is controlled automatically to
always keep an appropriate image level by using the auto iris, the auto gain control, and the ND filter. When the iris cannot be
stopped down based on the auto iris, the ND filter takes over it. Moreover, when the iris is open, the auto gain control takes over
it.
Dark
Auto gain control operation
Area where parameter setting
value for NIGHT is reflected
Auto iris + ND filter control
The ND filter enters for one stage when lens IRIS value exceeds F13.
The ND filter drops out of for one stage when lens IRIS value becomes F4 or less.
Auto gain control operation
The auto gain control starts when the ND filter is 1. CLEARD and F value becomes F2.8 or less.
[ENGINEER PAGE1] Structure of AVC SETUP
QUIT
FUNCTION
AVC MODE
D/N TIME
D/N CHANGE LEVEL
F LIMIT
・FUNCTION
The AVC function sets various parameters different from the standard HDL-45E
specialized as the information camera.
ENABLE：AVC operation
DISABLE：HDL-45E standard operation
・D/N TIME
The takeover timing of [DAY MODE] and [NIGHT MODE] can be set from two kinds.
STANDARD：Factory setup data
FAST：The follow timing becomes rapid operation compared to STANDARD.
・D/N CHANGE LEVEL
The image level point taken over from [DAY MODE] to [NIGHT MODE] can be set from
4 kinds.
The image level is taken over from [DAY MODE] to [NIGHT MODE] at a high point in
order of TYPE4→3→2→1.
Auto iris operation
AVC SETUP
ENABLE
STANDARD
TYPE1
5. OPERATION
Auto iris + ND filter control
Area where parameter setting
value for DAY is reflected
q
w
5 - 39
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