Thursday, March 20, 2008

JOULE

Definition: unit used to quantify the light output of electronic flash. A joule is equal to one watt second of 40 lumen-seconds. The measure is used to compare flash units in terms of power output.

Diposting oleh Anonymous di 7:09 AM

Label:

0 komentar:

Post a Comment

Subscribe to: Post Comments (Atom)
Template by - Abdul Munir | Daya Earth Blogger Template