Archived posting to the Leica Users Group, 2007/03/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]George, Just because the man was a Leica rep, that doesn't make him an "expert". I have used the slanted ruler test quite successfully. It would only be invalid if one oriented the camera vertically so that the distance from each rangefinder window to the ruler is different. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "Lottermoser George" <imagist3@mac.com> To: "Leica Users Group" <lug@leica-users.org> Sent: Monday, March 19, 2007 10:08 AM Subject: Re: [Leica] Focus, Noctilux, M8, C Mode & Scotch > Over on the Leica Camera User a Leica rep responded to this "ruler test" > with some insight. Because the range finder windows are off axis from the > lens the test is really quite useless for rangefinder cameras. One really > has to check the focus with the film plane and the subject plane at > absolute parallel - as that is the only time that the rangefinder and > subject will actually work. Makes perfect sense. When you consider this > while testing; results become very different. It quite altered my way of > testing and working with the M in the last few weeks. > > Regards, > George Lottermoser > george@imagist.com > > > > On Mar 17, 2007, at 2:54 PM, Robert Rose wrote: > >> If I try shooting at a ruler, at the closest focus around 3.5 feet, the >> focus seems to be maybe 0.5 to 1.0 inches beyond the focus I set. (Of >> course, when hand holding I am probably swaying more than that.) With >> the shallow DOF at f/1, this is enough to put an eye out of focus. > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >