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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| foot-candle | |
| —n | |
| a former unit of illumination, equal to one lumen per square foot or 10.764 lux | |
foot-candle n.
A unit of measure of the intensity of light falling on a surface equal to 1 lumen per square foot. It has been replaced in the International System by the candela (1 lumen per square meter).