Toshiba IK - HD1C - Manual (Page 15)

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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”.)
㽲 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.
Meaning Display
SHD OK
Automatic shading correction operation finished correctly.
SHD OK
LIMIT
Automatic shading correction operation finished, however, the correction
necessary exceeds the camera’s range so the maximum possible value is applied.
SHD NG
LEVEL LOW
Automatic shading correction cannot be performed because the video level is too
low. Adjust the video level by increasing the illumination or opening the lens iris.
SHD NG
LEVEL HIGH
Automatic shading correction cannot be performed because the video level is too
high. Adjust the video level by decreasing the illumination or closing the lens iris.
㽳 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”.)
㽴 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) .
.
6 5 Shading Correction
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.