Note:
White, red, green, or blue dots may occur when the gain is increased. This is not a malfunction, just
certain characteristics of the CCD becoming more visible.
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5 Shading Correction
Due to the lens used or the environmental condition, color shading may occur at the upper and lower edge of the screen. If this happens, the shading correction function can be used to decrease the amount of color shading. For shading correction of the unit, SET (Automatic shading correction), MANUAL (Manual shading correction), and OFF (no shading correction) modes are provided. Select the mode on the OPTION menu. (Refer to the item “7.2 (7) (7.2) Changing shading correction mode”.)
SET(Auto shading)
䍃If the color bar pattern is displayed on the screen or if the index menu/menu is displayed, press the [DISP] button to remove them from the screen.
䊶Push the [MENU UP] button for approx. 1 second.
䊶When the automatic shading correction operation starts, the character SHD blinks on the screen.
䊶When the automatic shading correction operation terminates, the character SHD ends blinking and the result is displayed for approx. 1 second.
Display | Meaning |
SHD OK | Automatic shading correction operation finished correctly. |
SHD OK | Automatic shading correction operation finished, however, the correction |
LIMIT | necessary exceeds the camera’s range so the maximum possible value is applied. |
SHD NG | Automatic shading correction cannot be performed because the video level is too |
LEVEL LOW | low. Adjust the video level by increasing the illumination or opening the lens iris. |
SHD NG | Automatic shading correction cannot be performed because the video level is too |
LEVEL HIGH | high. Adjust the video level by decreasing the illumination or closing the lens iris. |
MANUAL(Manual Shading)
Perform the correction amount setting on the OPTION menu, confirming with a monitor or a vector scope. (Refer to the “7.2 (7) (7.3) Changing manual shading correction mode”.)
OFF
The status is no shading correction.
*Shading correction is only effective when the lens iris and zoom ratio is fixed. Use the unit with SHADING OFF for variable lens conditions. .
Note:
Before shading correction is performed, please shoot a known white object that fills the screen in the proper video level and set the automatic white balance (AWB) .
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