Archived posting to the Leica Users Group, 2002/03/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Frank Filippone writes: "Apostibs? Whatforth art thou Apostibs? I have been in the photographic hobby since I was 13, Electronics since 18, and digital and non-digital computer imaging since 30... Never heard of this term.... can you please give a definition of the term? I do understand the more mundane: foot lamberts, candlepower, EV. But Apostibs? Is that the base level light reading that a man can NOT see a nekkid girl at 500 paces?" Apostilb is a unit of luminance. It is "the luminance of a matt surface which emits one lumen per square metre", so 1 candela per square metre = 3.14159 apostilbs. - -- David Morton dmorton@journalist.co.uk "The genius is the one who plays most like himself." - Thelonius Monk. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html