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5
Adjusting the Lens White Shading
Take the following steps to adjust the white shading:
<Note>
Vertical coloring may occur near the open position of the lens
iris, even after adjusting the white shading. This phenomenon,
however, is a characteristic of the lens or optical system. It does
not indicate a malfunction.
1 Mount the lens on the camera.
Be sure to connect the lens cable.
2 Set the electronic shutter to [OFF], the gain to [L (0dB)],
and the ASPECT option to “16:9”. Select the ASPECT
option from the SYSTEM MODE screen on the SYSTEM
SETTING page.
3 If the lens has an extender, disable the extender feature.
4 Operate the MENU and go to the PAINT page to open the
<GAMMA> screen. Confirm that the GAMMA MODE SEL
is set to STD. From the VF page, open the <VF DISPLAY>
screen to confirm that ZEBRA1 DETECT, ZEBRA2
DETECT, and ZEBRA2 are set as shown in the diagram
below. If they are not, correct the settings and then close
the MENU screen.
5 Set the Viewfinder ZEBRA switch to ON.
6 Aim the lens at a sheet of white paper that has no color
shading.
<Note>
Flickering naturally occurs when fluorescent, mercury or
other such lamps are used for lighting. Therefore, use a
light source that does not flicker, such as sunlight or
halogen lamps.
7 Set the lens iris to manual and adjust the lens iris so that
the ZEBRA pattern covers the entire screen.
Make sure that the lens iris is set between F4 and F11.
<Notes>
z The ZEBRA pattern will not cover the entire screen if the
lighting is uneven. In this case, adjust the lighting (e.g.,
change the position of the light source).
z Even if the lens iris is not set between F4 and F11, adjust
the lighting (e.g., change the position of the light source).
z Make sure that the electronic shutter is set to OFF.
8 Set the WHITE BAL selector switch to A or B, and
execute Auto White Balance (AWB) with the AUTO W/B
BAL switch.
Next, execute Auto Black Balance (ABB) with the AUTO
W/B BAL switch.
Repeat Auto White Balance (ABB) with the AUTO W/B
BAL switch.
9 Repeat the adjustment described in Step 7.
10 Activate the MENU and go to the MAINTENANCE page to
open the <WHITE SHADING> screen.
11 Turn the JOG Dial button to move the cursor to
DETECTION (V.SAW). Then, press the JOG Dial button to
execute white shading compensation.
12 Press the JOG Dial button and the following message
appears.
13 Turn the JOG Dial button to move the cursor to [YES]. Then
press the JOG Dial button.
[ACTIVE] appears on the screen to indicate that the white
shading automatic adjustment is running.
[W-SHD OK] appears when the adjustment is completed.
<Note>
This compensation may not be possible when [LEVEL
OVER] is displayed, depending on the KNEE setting. In this
case, first narrow the lens iris or set the OUTPUT switch
AUTO KNEE to OFF. Next, activate the MENU to open the
PAINT screen. From the PAINT screen, open the <KNEE/
LEVEL> screen and set MANUAL KNEE to OFF. Then
repeat Steps
4 to 9.
After [W-SHD OK] is displayed, re-set MANUAL KNEE back
to ON.
14 If the lens has an extender or a ratio converter, enable the
feature and repeat Steps
7 to 13 for each feature.
Three patterns of compensation values (with an extender,
with a ratio converter, and without any features) will be
stored as one set of lens file data in the camera-recorder.
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