If The Automatic White Balance Adjustment Cannot Be Made - Sony DVW-970/970P Operation Manual

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).
3
Place a white test card under the same lighting
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:
Note
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.
AUTO W/B BAL switch
The switch returns to the center position, and the
adjustment is executed.
During adjustment, the message "AWB :
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
Rectangle centered on
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.
figure, and the adjustment setting is automatically
stored in the memory (A or B) that was selected in step
1.
A W B : O K
. K
Note
If the camera has a zoom lens with an automatic iris,
1)
the iris may hunt during the adjustment. To prevent
this, adjust the iris gain knob (indicated as IG, IS, or S)
on the lens.
1)Hunting
Repeated brightening and darkening of the image, resulting from
repeated response to automatic iris control.
For details, refer to the lens operation manual.
If the automatic white balance adjustment
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.
White balance adjustment error messages
Error message Meaning
AWB : NG The white video level is too low.
LOW LEVEL Either open the lens iris or increase
the gain.
AWB : NG The color temperature is too high.
COLOR TEMP HIGH Select a suitable filter setting.
AWB : NG The color temperature is too low.
COLOR TEMP LOW Select a suitable filter setting.
AWB : NG Adjustment could not be completed
TIME LIMIT within the standard number of
attempts.
AWB : NG The white area could not be
POOR WHITE AREA checked.
AWB : NG The white video level is too high.
OVER LEVEL Either stop down the lens iris or
change the ND filter.
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.
Adjusting the Black Balance and the White Balance
Approximate color
temperature of the
subject
55