Glossary

Aliasing

Distortion of the signal caused by overlap of the baseband signal and the lower sideband signal when the signal is demodulated.

ATW

Auto Tracing White balance. The white balance is automatically adjusted for the lighting conditions during shooting.

Bayonet mount

A type of lens mount. The lens can be inserted into the lens mount and quickly locked in place by simply rotating the lens locking ring.

Black balance adjustment

To balance the black levels of the R, G, and B channels of a video camera so that black has no color.

Black set

A reference level for black balance adjustment.

CCD

A

Charge-Coupled Device. A solid state imager used in most video cameras in place of a pickup tube. The device converts input light levels into electrical charges that are first stored and then output in the form of voltage variations.

Center marker

A cross which indicates the center of the image on the viewfinder screen.

Color bar signal

A test signal which can be displayed as vertical bars of different colors on a color video monitor. This signal is used to check chrominance functions of color television and video systems such as cameras and monitors.

Appendix A-11