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Lux - The lux (symbol: lx) is the SI derived unit of illuminance or illumination. It is equal to one lumen per square metre.

The difference between the lux and the lumen is that the lux takes i. Used . nto account the area over which the luminous flux is spread. 1000 lumens, concentrated into an area of one square metre, lights up that square metre with an illuminance of 1000 lux. The same . Used . 1000 lumens, spread out over ten square metres, produces a dimmer illuminance of only 100 lux.

Achieving an illuminance of 500 lux might be possible in a home kitchen with a single fluorescent lig...

Fogger - A Fogger or Smoke machine is an electrical device that creates clouds of artificual and hopefully non-toxic fog. The fog may come in different colors or smells and may be water or mineral based. It i. Used . s used for effects in theatre, staging, concerts and clubs.

Hazers by contrast create a more diffusive, expansive haze that is usually not a thick and is used to enhance other ef. Used . fects, such as lighting and light beams.

Bump Button - A lighting console button that performs on action when pressed and another when released. This is a lighting console term.. Used . . Used . ...

MS - A stereo recording technique that uses of two different types of microphones, a directional or cardioid for the M facing forward and an omni-directional or figure-eight for the S with the lobes at a 9. Used . 0 degree angle. The main advantage being that the center sounds are not 45 degrees off-axis eliminating the gap in XY recording. Initially there were problems with reflections due to the use. Used . of two different types of mics, however mics have now been developed to overcome this problem....

Club Systems - A club system is an all in one audio or lighting set up designed for permanent installation in a nightclub or similar venue. Used . . Used . ...