Nikon Autofocus Speedlight SB-24 - Manual (Page 136)

Hertz
Abbreviated Hz, a unit of measurement equaiiing one cycie per
second.
LCD
Liquid Crystal Display: the visible display vi/hich shows
information on the back of the SB-24 and in some camera
finders.
Matrix Metering System
An advanced camera iight metering system using a muiti-
segment sensor and computer; available in Nikon SLR models
F4 and F-801/N8008. A basic version is used with the Nikon
F-401/N4004 and F-401s/N4004s models. Matrix Metering is an
exclusive Nikon feature.
Non-TTL Auto
A sensor measures illumination without viewing through the
camera’s lens.
Red-eye
A phenomena caused by the reflection of light off the inside of
the eye, resulting in red spots appearing in a subject's eye in
color photographs. This effect is not caused by equipment, but
rather by the relative position of the flash in relation to the
subject and the camera’s lens. Red-eye is not always
predictable.