Sony HDCAM HDW-730 Operation Manual page 141

The white balance adjustment ends in a second with the message
"WHITE : OK", and the adjustment setting is automatically stored in the
memory (A or B) that was selected in step 1.
Note
If the camera has a zoom lens with an automatic iris, the iris may hunt
during the adjustment. To prevent this, adjust the iris gain knob (marked
with IG, IS, or S) on the lens.
For more information, refer to the lens operation manual.
....................................................................................................................................
1) Hunting
Repeated brightening and darkening of an image, resulting from repeated
response to automatic iris control.
Chapter 4 Adjustments and Settings for Recording
Approximate color
temperature of the object
4
1)
4-9