A footcandle is a unit of measurement that describes how much light is illuminated on a surface one foot from the source. The term is used in reference to the light of a candle. A footcandle recommendation is used to assess lighting for both indoor and outdoor applications. The most common use for indoor footcandle recommendations is in photography and videography. Outdoors, a footcandle
. recommendation can be useful for construction workers who must complete a project after sunset. The Illuminating Engineer's Society keeps a record of acceptable footcandle recommendations. You can find more information here: http://tristate.apogee.net/lite/llitfcr.asp
