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C2403M-C (10/05) 13
SWITCH SETTINGS FOR VARIFOCAL LENS
The high resolution camera with varifocal lens and auto iris is configured at the factory for optimal
performance in lighting conditions where auto iris is required. It is also configured with the shutter
speed set at 1/60 (NTSC) or 1/50 (PAL) and manual gain set at 6 dB.
Figure 1.
Switch Settings for Varifocal Lens
For manually setting and locking the white balance
Place a white background in front of camera and turn off switch 1.
For gamma correction
Switch to accurately reproduce scene brightness; when turned on, y = 0.6, and when turned off,
y = 1.0.
For automatic exposure
Turn on switch 7, and then turn on/off switch 3 for AGC, switch 4 for electronic shutter control, switch
5 for backlight compensation, and switch 6 for flickerless motion.
For manual exposure and to enable auto iris
Turn off switch 7; set switch 3 on to increase the gain by 6 dB or off to increase the gain by 18 dB; set
switches 4, 5, and 6 for the desired shutter speed.
WARNING:
Do not change the shutter speed unless you understand how changing the set-
tings will affect the scene detail.
Table A.
Varifocal Lens Shutter Speed Settings
Shutter Speed
Switch Number and Position
7 6 5 4
1/60 (NTSC)
1/50 (PAL)
Off
On On On
1/100 Off On On
1/250 On Off On
1/500 Off Off On
1/1000 On On Off
1/2000 Off On Off
1/4000 On Off Off
1/10000 Off Off Off
1 2 3 4 5 6 7 8
OFF
FACTORY SETTINGS
UP
DOWN
= SWITCH POSITION
1 AWB Automatic white balance
2 GAM Gamma function
3 AGC Automatic gain control
4 ESC Electronic shutter control
5 BLC Backlight compensation
6FL Flickerless
7AE Automatic exposure
8 Not used
AE Functions