Beam candlepower seconds (BCPS)
From The Glossary of Digital Photography
A numerical rating of the light output of an electronic flash when its light is focused into a beam. See also effective candlepower second (ECPS)
ONLINE GLOSSARY OF DIGITAL PHOTOGRAPY
A numerical rating of the light output of an electronic flash when its light is focused into a beam. See also effective candlepower second (ECPS)
