Setting Nightshot (True Day/Night) - Honeywell ACUIX User Manual

Configuring HDXA, HDXJ, and HDXF Camera Settings

Setting NightShot (True Day/Night)

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Backlight Compensation
Backlight compensation (BLC) corrects for strong background lighting by
enhancing subjects in the foreground, providing detail that would normally be
silhouetted.
You can turn backlight compensation on or off by using special preset 93 when
the dome is configured for MAXPRO-mode/VCL/VCL UTC/Pelco P/Pelco D
protocol.
Note In most applications, wide dynamic range may be a better option than
backlight compensation.
To enable/disable backlight compensation:
1. Ensure that auto exposure is on (preset 92).
2. Do one of the following:
• Enter preset 93 on your controller.
• Select 5 Camera Options
Compensation
This feature is only available with HDXJ and HDXF cameras. It is not available with
HDXA cameras.
When NightShot, or True Day/Night (TDN), is enabled, all available visible and IR
light is allowed to reach the image sensor and be recorded, producing a black
and white picture at the lowest possible light level.
You can configure the specific values at which the camera switches from day
mode (color, insensitive to IR) to night mode (black and white, sensitive to IR)
and from night mode to day mode. These are the activate and deactivate points.
The full list of values from highest light level to lowest light level is shown in
Table C-1 on page 103.
The deactivate point must always be at a higher light level (lower video gain and
lower shutter time) than the activate point. To ensure the highest quality picture,
the deactivate point should be set to 0 dB and 1/60 s, with the activate point set
far enough below it that the camera does not oscillate between day and night
modes. If the camera continually switches between day mode and night mode,
move the deactivate and activate points farther apart.

2 Exposure Control

ON or OFF (default).

8 Backlight