Sony DVW-707/707P Operation Manual page 262

Notes on CCD Image Sensors
Vertical smear
Smear tends to be produced when an extremely bright object is being
shot; it is more likely to occur with a faster electronic shutter speed.
6
Aliasing
When patterns of stripes or lines are shot, they may appear jagged.
6-14
Chapter 6 Maintenance
Vertical tails show on the image.
Bright object
(mercury lamp, the sun, reflections, etc.)
Monitor screen
Vertical smear