Archived posting to the Leica Users Group, 1999/09/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> I'd like to know why the reference is 18% gray, rather than, say, 50% gray, > which seems more logical. > > And how is 18% gray defined? Does this mean a random pattern of 18 black dots > for every 82 white dots, or what? Most of the gray cards I see look as though > they are actually more than 18% gray, but I'm not sure what the formal > definition of this is. Read a book on the Zone System and all will be revealed! - -- Johnny Deadman "Nothing will dispel enthusiasm like a small admission fee" - Kin Hubbard