PREPARATIONS FOR OPERATION
52
White Balance Adjustment
Since the color of light (color temperature) varies depending on
the light source, it is necessary to re-adjust the white balance
when the main light source illuminating the subject changes.
White Balance Adjustment
Two kinds of white balance adjustment results can be stored
in memories AUTO A and AUTO B.
Adjustment procedure
1.
Set the following switches.
• Set the POWER switch to ON.
• Set the IRIS mode switch of the lens to A (Auto).
• Set the FULL AUTO switch to OFF.
2.
Set the ND filter switch according to the current lighting.
3.
Set the WHT.BAL switch to A or B.
4.
Place a white object near the center of the screen under
the same lighting conditions as the target subject and
zoom in to fill the screen with white.
5.
Press the AWB (Auto White Balance) button.
“AUTO WHITE A, B OPERATION” is displayed in the view-
finder while the auto white balance adjustment circuit operates.
When correct white balance is obtained, the approximate
color temperature is displayed together with “AUTO
WHITE A, B OK” for about 5 seconds.
MEMO
Fine-tune red and blue to match the white adjusted in white
balance in WHITE PAINT<R>/<B> on the WHITE BAL-
ANCE menu screen.
X
See page 85.
Error messages
If the adjustment ends abnormally, an error message, as
described below, blinks for about 5 seconds.
• NG: OBJECT (Improper object)
Displayed when there is not enough white color on an
object or the color temperature is not suitable.
Replace the color temperature conversion filter or use
another white object and re-adjust the white balance.
• ERROR: LOW LIGHT (Insufficient illumination)
Displayed when the illumination is dim. Increase the illumi-
nation and then re-adjust the white balance.
• ERROR: OVER LIGHT (Excessive illumination)
Displayed when the light is excessively bright. Decrease
the illumination and then re-adjust the white balance.
CAUTION
• Do not adjust using any highly reflective objects, such as
metal, etc., as this may result in improper white balance
adjustment.
• The FAW (Full Auto White balance) function cannot pro-
vide optimum white balance with a subject outside the
FAW adjustment range, for example when it contains
only a single color or not enough white color.
• The accuracy of the FAW (Full Auto White balance) is
inferior to that of the Auto white balance.
• When the power is turned on with the FAW mode
selected, it takes about 10 seconds for the FAW adjust-
ment to be completed.
Do not shoot within this interval.
Full Auto White Balance (FAW)
The FAW function adjusts the white balance value automati-
cally as the lighting condition changes.
This mode is convenient when you have no time to adjust the
white balance or when the camera is moved frequently in
and out of places under different lighting conditions.
Setting procedure
The FAW function can be activated with the FAW item on
the SWITCH MODE menu screen. The FAW function can
be allocated to one of the white balance switching
switches A, B, or PRESET.
X
See page 86.
Iris mode switch (
7
on page 10)
ND filter
WHT.BAL
switch
POWER switch
AWB button
During operation
Result message
Improper object
Insufficient illumination
Excessive illumination
53
White Shading Adjustment
Even if white balance is achieved in the middle of the screen,
it may not be achieved at the top and bottom of the screen.
Greens and magentas may be colored. This is due to char-
acteristics of the lens. Correcting this phenomenon is called
White Shading Adjustment.
Perform this after adjusting white balance.
White shading adjustment is performed on the WHITE BAL-
ANCE menu screen.
1.
Display the WHITE BALANCE menu screen.
Follow the steps in “Setting Menu Screens” on page 75
and proceed as follows.
MENU
r
CAMERA PROCESS[1/2]
r
CAMERA PRO-
CESS[2/2]
r
ADVANCE PROCESS
r
WHITE BALANCE
Setting in the WHITE BALANCE screen is performed as fol-
lows.
Selecting an item
Turn the SHUTTER dial to align the cursor (
j
) with the
desired item, and press the SHUTTER dial.
• The item is selected and the setting value blinks.
Changing the setting value
Turn the SHUTTER dial to change the blinking value. When
the SHUTTER dial is pressed, the value stops blinking and
the setting is changed.
2.
Perform the above steps to set SHADING to MANUAL.
3.
Select LEVEL(R), LEVEL(G), LEVEL(B) and press the
SHUTTER dial.
• The setting value for the selected LEVEL blinks and
becomes available for changing.
4.
Change the setting values for LEVEL(R), LEVEL(G), and
LEVEL(B) with the SHUTTER dial while referring to the
monitor.
When setting values are increased, colors at the bottom
of the screen are suppressed and the top is enhanced.
LEVEL(R): Adjusts reds.
LEVEL(G): Adjusts greens.
LEVEL(B): Adjusts blues.
<Range: -128 to +127>
5.
Press the SHUTTER dial after changing the setting val-
ues to save in the memory.
6.
Press the STATUS button to return to the normal screen.
7.
When white shading adjustment is completed, adjust
white balance again.
X
See “White Balance Adjustment” on page 52.
