Sony DVW-970/970P Manuel D’Utilisation
55
Adjusting the Black Balance and the White Balance
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If the setting of the FILTER selector is changed, a
message reporting the setting appears for about 3
seconds in the setting change and adjustment progress
message display area of the viewfinder screen (in
display mode 3).
message reporting the setting appears for about 3
seconds in the setting change and adjustment progress
message display area of the viewfinder screen (in
display mode 3).
3
Place a white test card under the same lighting
conditions as for the subject to be shot and zoom up to
it.
conditions as for the subject to be shot and zoom up to
it.
Alternatively, any white object such as a cloth or a wall
can be used.
The absolute minimum white area is as follows:
can be used.
The absolute minimum white area is as follows:
Make sure there are not bright spots in the rectangle.
4
Adjust the lens iris.
Manually adjusted lens: set the iris to an appropriate
setting.
Lens with automatic iris: set the automatic/manual
switch on the lens to automatic.
5
Push the AUTO W/B BAL switch to WHT and then
release the switch.
release the switch.
The switch returns to the center position, and the
adjustment is executed.
adjustment is executed.
During adjustment, the message “AWB :
EXECUTING” is displayed on the viewfinder screen
(in display mode 2 or 3).
EXECUTING” is displayed on the viewfinder screen
(in display mode 2 or 3).
The white balance adjustment ends in about one
second with the message shown in the following
second with the message shown in the following
figure, and the adjustment setting is automatically
stored in the memory (A or B) that was selected in step
1.
stored in the memory (A or B) that was selected in step
1.
If the camera has a zoom lens with an automatic iris,
the iris may hunt
the iris may hunt
1)
during the adjustment. To prevent
this, adjust the iris gain knob (indicated as IG, IS, or S)
on the lens.
on the lens.
1)Hunting
Repeated brightening and darkening of the image, resulting from
repeated response to automatic iris control.
repeated response to automatic iris control.
For details, refer to the lens operation manual.
If the automatic white balance adjustment
cannot be made
cannot be made
If the white balance adjustment cannot be completed
normally, an error message will appear for about 3 seconds
on the viewfinder screen (in display mode 2 or 3).
Possible messages are listed below.
normally, an error message will appear for about 3 seconds
on the viewfinder screen (in display mode 2 or 3).
Possible messages are listed below.
If any of the above error messages is displayed, retry the
white balance adjustment. If the error message occurs
again, contact your Sony service representative.
white balance adjustment. If the error message occurs
again, contact your Sony service representative.
Note
Rectangle centered on
the screen. The lengths of
the sides are 70% of the
length and width of the
screen.
the screen. The lengths of
the sides are 70% of the
length and width of the
screen.
The white object must be
within the rectangle and
have an area of at least
10% of the screen.
within the rectangle and
have an area of at least
10% of the screen.
AUTO W/B BAL switch
Note
White balance adjustment error messages
Error message
Meaning
AWB : NG
LOW LEVEL
LOW LEVEL
The white video level is too low.
Either open the lens iris or increase
the gain.
Either open the lens iris or increase
the gain.
AWB : NG
COLOR TEMP HIGH
COLOR TEMP HIGH
The color temperature is too high.
Select a suitable filter setting.
Select a suitable filter setting.
AWB : NG
COLOR TEMP LOW
COLOR TEMP LOW
The color temperature is too low.
Select a suitable filter setting.
Select a suitable filter setting.
AWB : NG
TIME LIMIT
TIME LIMIT
Adjustment could not be completed
within the standard number of
attempts.
within the standard number of
attempts.
AWB : NG
POOR WHITE AREA
POOR WHITE AREA
The white area could not be
checked.
checked.
AWB : NG
OVER LEVEL
OVER LEVEL
The white video level is too high.
Either stop down the lens iris or
change the ND filter.
Either stop down the lens iris or
change the ND filter.
AWB:OK
. K
Approximate color
temperature of the
subject
temperature of the
subject