Sony MSW-900 Operation Manual page 335

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.
Aliasing
When patterns of stripes or lines are shot, they may appear jagged.
Vertical tails show on the image.
Bright object
(mercury lamp, the sun, reflections, etc.)
Monitor screen
Vertical smear
Chapter 6 Maintenance
6
6-15