I need some help from you people in figuring out the correct conversion from foot lambert to the equivalent lux.
Some say that 1 foot lambert is equivalent to 1 foot candle, others that 1 candela per square foot is Pi of 1 foot lambert.
1 foot candle is shown to be equivalent to 1 lumen per square foot and, since there're 10.76 square foot in 1 square meter, then 1 lumen per square foot is 10.76 lumen per square meter, which is equivalent to lux.
So, if I start from 14 foot lambert, I have to divide by Pi and multiply by 10.76 to obtain the lux equivalent of circa 48.
Is it correct?
Last edited by Optimus_Fine; 06-12-2015 at 10:40 AM.