λ
Strong smear and/or blooming on highlight objects such as spotlights or windows.
λ
Noticeable flicker in the picture and/or color rendition variations.
To avoid this, use an autoiris lens.
3. When operating in EE/ELC mode with manual iris lens, the depth of field of the image may
be less than that obtained by using an AI/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.
Note: When adjusting the focus, it is recommended that the iris be completely open (a dark condition, either at
night or using a filter) so that the depth of field does not influence the adjustment.
4. Fixed iris or manual iris lenses may be used with the linear shutter (EE/ELC mode) where
the scene brightness varies over a limited range.
5. Do not use the EE/ELC mode when an autoiris lens is installed.
5. AWB/ATW select switch
This camera has 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 (
7
). 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. DAY & NIGHT ON/OFF switch
This switch is used to select DAY & NIGHT mode or only DAY mode.
When this switch is set to ON, it automatically shifts the optical filter for color mode or
black-and-white mode according to the subject brightness.
Cautions:
1. Upon power-up, DAY mode (color mode) is the default.
2. While changing from the DAY mode (color mode) or NIGHT mode (black-and-white
mode) there may be noise. The image will also be distorted. This is normal and does
not indicate a problem.
3. If there is strong reflection on the subject when using infrared lighting, the optical filter
8
XX135-10-01 Rev 409 VC566DN Cameras
