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E28
4. Shooting a computer monitor screen (cont’d)
White spot compensation
One of the inherent, general characteristics of CCDs is that white spots may appear in the image
at slow shutter speeds or during shooting at high temperatures.
To moderate this phenomenon, this camera is provided with a white spot compensation function.
In the digital output mode, white spot adjustment should be performed using the special appli-
cation software [KY-LINK].
How to use
Ⅲ White spot detection
Because the number of spots and their size differ with the temperature and shutter speed, etc., it is necessary to
detect the positions of the white spots under the conditions of use before the white spot compensation is used.
1.
Make the settings under the conditions at which the unit
is to be used (ambient temperature and shutter speed,
etc.).
2.
Prevent light from entering the CCD by closing the lens
iris, etc.
3.
Open the side switch panel, and press the [MENU] but-
ton for 2 seconds or longer. The [MENU] screen ap-
pears on the monitor screen.
4.
Press the [UP] or [DOWN] button to select [PIXEL
CHECK] on the [PROCESS(2/2)] screen, and then press
the [SET] button to display the [PIXEL CHECK] screen.
5.
When the [SET] button is pressed, detection of the po-
sitions of white spots starts. The detection may take
several minutes.
6.
When the detection is completed, “PIXEL CHECK OK”
is displayed for about 3 seconds before the [MENU]
screen returns.
PROCESS (2/2) screen
PIXEL CHECK screen Screen during detection
Screen when detection is completed
UP/AW
SET
MENU
DOWN
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Inside window