Cautions:
1.
Under bright lighting conditions such as outdoors, use an autoiris lens because the ELC
control range is not wide enough under these conditions.
2. Under certain unique lighting conditions, the following phenomena may appear:
$
Strong smear and/or blooming on high-light objects such as spotlights or windows.
$
Noticeable flicker in the picture and/or color rendition variations.
To avoid this, use an autoiris lens.
3. When operating in ELC mode with a manual iris lens, the depth of field of the image may
be less than that obtained by using an ALC lens. Depth of field varies inversely with the
iris opening. Thus, using this camera in ELC mode with the manual iris lens fully opened
may result in less depth of field and the distant objects in picture may be seen out of
focus.
4. Fixed iris or manual iris lenses may be used with the linear shutter (ELC mode) where the
scene brightness varies over a limited range.
5. Do not use the ELC mode when an autoiris lens is installed.
5. AWB/ATW select switch
This camera has an AUTO WHITE BALANCE (ATW) and MANUAL WHITE BALANCE
(AWB) function.
The camera is automatically adjusted to the best condition in the ATW mode.
In the AWB mode, it can be adjusted for the best color manually by pushing the AWB
HOLD button (
%
). Pole 5 is set to ON for ATW and OFF for AWB.
6. AGC ON/OFF switch
This switch is provided for the AGC circuit.
The AGC circuit incorporated into the camera boosts the sensitivity automatically when the
scene illumination is insufficient.
7. HI-GAIN ON/OFF switch
The automatic MORE-GAIN function automatically adjusts picture gain in accordance with
the brightness of the subject. This function enables when Pole 6 is set to ON.
Summary of Contents for VC455-DSP
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