Foot candle
Foot Candle
Foot Candles for illumination levels. Many methods of film speed rating (historical) including Hurter an Driffield, Scheiner, BS (British Standard) ASA and ANSI, APEX. F numbers - this may now be an SI unit.
Illumination
lux
A pica is a unit of type size, a pixel is a unit of illumination.
The cgs unit of illumination is erg per square centimeter per second (erg/cm^2/s). It measures the amount of light energy incident on a surface per unit area per unit time.
Crown Film Unit was created in 1940.
GPO Film Unit was created in 1933.
LUX is the measurement of illuminance and luminous emittance from light sources.
A three-letter word ending in "ux" is "lux," which means a unit of illumination or light.
The shot
A monolight flash is a type of studio strobe light that provides powerful, consistent illumination for photography. It combines the flash head and power supply into a single unit, making it portable and easy to set up. Monolights are commonly used in portrait, product, and fashion photography, offering adjustable power settings and often allowing for the use of various light modifiers to shape the light. They provide a quick burst of light, freezing motion and enhancing image quality in controlled lighting environments.