Archived posting to the Leica Users Group, 2001/07/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jorg Willems wrote: > > That's news to me! > I thought that square root of 2 always constitutes one stop. > ><Snip> I think the issue is that the real practice does not add up what the numbers say. This might be the case with an old Canon lens perhaps. So people would say why pay for all that heavy glass when it's only a half stop anyway in real practice. But as far as the newer Noctiluxs go Erwin tested out a true one stop increase. You'd you'd be getting what you'd pay for. Mark Rabiner Portland, Oregon USA http://www.rabiner.cncoffice.com/