Archived posting to the Leica Users Group, 1999/09/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Anthony Atkielski wrote: > > From: Godfrey DiGiorgi <ramarren@bayarea.net> ><Snip> > I'd like to know why the reference is 18% gray, rather than, say, 50% gray, > which seems more logical. ><Snip> > -- Anthony No dots. My greycard under high magnifation has no disernable halftone pattern Lots of stuff in the archives on that if you want to drive yourself crazy. It's a standard for aiming your meter at that's all. A grey card is referred to for some reason as 18% grey. It is also middle grey. Zone V. Average. But somehow it is not and the slightest tilt throws off your reading considerably. But not a bad thing to have lying around. Mark Rabiner