IR CUT FILTER
Spectra IV dome systems have two modes of operation: color, and
The following are the settings for the IR cut filter:
OFF: Manual operation is controlled by preset 88 (filter IN) and 89 (filter OUT).
AUTO (default): Automatic operation is controlled by the auto IR level setting.
IN: Images are always displayed in color mode.
OUT: Images are always displayed in
NOTE: The IN and OUT settings are available when editing camera settings through the Camera and Presets menus (refer to Camera on page 23 and Presets on page 34).
Auto IR Level
The auto IR level is the light level at which the infrared filter switches IN or OUT.
Following are the available settings for the auto IR level:
DUSK (default): Approximately 6 lux
DARK: Approximately 0.1 lux
NOTES:
•If backlight compensation is ON and the IR cut filter switches OUT in normal lighting conditions, adjust the Auto IR Level to a darker setting. Refer to Backlight Compensation on page 27.
•Low light does not mean no light. Some type of illumination is required (street light, IR light, etc.). The camera is not sensitive to IR light when the IR cut filter is IN.
Low Light Focus
(Applies to 27X and 35X models only.)
If you are using an IR illuminator, the low light focus feature of the camera can be tuned to correspond to the setting of the illuminator.
There are three low light focus settings:
OFF (default): Low light focus is not activated.
850NM: Low light focus is tuned to 850 nm (nanometers).
950NM: Low light focus is tuned to 950 nm.
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