LTI TRUCAM LASER MEASUREMENT DEVICE - Tele-Traffic

Camera Lens Focus Distance
During assembly, the Camera is focused for 70 metres.
This setting provides sharp images from 50-150 metres.
Pull the TRIGGER to start the Capture Mode.
Tap or press the soft key twice to display
and then tap
or press the soft key to use
the zoom function to optimise the view.
Locate a target with defined lines on it. A street sign
is ideal. The target should be at the Video Tracking
Distance set on the System Setup Screen.
Open the Camera Cover to access the Focus
Adjustment Ring and the Iris Adjustment Ring.
Figure 41 refers.
Aim the TruCAM at the target and adjust the lens iris for the best amount of light entering the camera.
Focus the Camera so you can easily read the target vehicle’s Licence plate and readily recognise the
surrounding roadway.
Hand-held: 15 - 80 metres
Tripod mounted: 15 - 90 metres
Shutter Speed
Shutter speed is the length of time that the shutter remains open as the image is captured, and is very
critical for image quality. Choose faster speeds as much as possible. The shutter speed and aperture
together control the total amount of light reaching the sensor. Shutter speeds are expressed in fractions
of a second. Lower shutter speeds provide larger F-stop number, and in turn result in a larger DOF.
Shutter speed may not be displayed during Playback Mode.
This option is available during the Capture Mode. Tap 
 or press the soft key to change the
shutter speed.
The current shutter speed is displayed at the top of the LCD Touch Screen. See page 65 for information
about the icons that appear at the top of the LCD Touch Screen.
The actual shutter speed is inversely related to the speed value displayed, so to increase the shutter
speed you would select a smaller setting.
Range: 2K0 = 1/2000 second (bright day) to 200 = 1/200 second (dark day)
200 is suitable for dark environments.
400 is suitable for lower speed zones.
600 is suitable for faster speed zones.
Higher shutter speeds may be suitable for bright environments and test/alignment.
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Focus Adjustment ring
Iris Adjustment ring
Figure 41
© Tele-Traffic UK Ltd 2011