Archived posting to the Leica Users Group, 2003/12/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Oh, I was thinking people could save it to their computer. If anybody wants it as a Microsoft Excel spreadsheet they can ask. But as Henning already noted the equation is like this when opening up the lens: http://www.sleepytom.com/increase.jpg and like this when stopping down the lens: http://www.sleepytom.com/decrease.jpg where delta-f is the absolute value of the change in f-stop (a 1/2-stop decrease represents a delta-f of 0.5, and a 1/2-stop increase also represents a delta-f of 0.5). Tom > -----Original Message----- > > Oops, so sorry. The link is http://www.SleepyTom.com/f-stop.xls . > > The only people who will be able to open this link are those > who have Microsoft Excel installed on their computer and > whose browser is configured to launch Excel for such pages. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html