If you don't know what a foot-lambert is, join the crowd.    From Wordnik.com.  [Why I Hate 3-D (And You Should Too)] Reference

On top of which the image has to be projected at SMPTE-recommended foot-lambert levels and the sound has to be strong, sharp, bassy and clear.    From Wordnik.com.  [Hollywood Elsewhere] Reference

1 foot-lambert (fL) 3.426 3. 426x10-4.    From Wordnik.com.  [2. Elements] Reference