Product specifications

Camera Controller
The next menu, Camera Controller, takes advantage of the Digital Signal Processor (DSP) in the camera to
adjust functions traditionally relegated to screw terminals or DIP switches.
The SurveyorVFT uses fully- and semi-automatic iris control. When autoiris is on, the Close Iris and Open Iris
buttons on a keyboard select the optimum video level the operator wishes the camera to maintain. This is called
the Average Iris Level and adjusts the iris based on the average intensity of the entire picture. When autoiris is
turned off on the keyboard, the Close Iris and Open Iris buttons directly regulate the lens aperture.
Selecting the Iris Levels menu displays a sub-menu allowing the user to choose
settings for Average Iris Level, Peak Iris Level or Keypad Autoiris Adjust. Average
Iris Level is described above and performs the same setting that the Iris Open and
Iris Close buttons do when the dome is in autoiris mode. Peak Iris Level (not
available on 18X) allows the autoiris to regulate the iris opening based on the
video level (or intensity) of the brightest objects in the picture. The settings may be
combined to optimize each camera’s ability to react to its location. The Keypad
Autoiris Adjust feature prevents an operator from adjusting the Autoiris level from
the keypad, when disabled, which is the default setting.
NOTE: The SurveyorVFT allows the iris to be switched between auto and manual
in simplex. A temporary message (2 seconds) displays indicating auto or
manual iris whenever the iris mode is switched.
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